Keep a stored battery topped up
You only need to hold a car, van, caravan or small-boat battery. The ECO-WORTHY 25 W kit is about £38.99, with a PWM controller, an SAE cable and brackets. It is a maintainer. It will not carry a motorhome roof load.
Solar panel kit comparison 2026
The best solar panel kits, compared.
Top pick: ECO-WORTHY 240W solar panel kit – Highest score in this set, 85, from 4.6 from 79 reviews and a full Z-bracket kit at about £164.49. The listing still clashes on 100 W versus 120 W panels, and one delivery contained only the panels. Best value: KOLLNIUN 240W solar panel kit – Cheapest two-panel kit whose wattage lines agree: 2 x 120 W, a 30 A controller and Z brackets at about £129.99. The 390 W kit costs more and its title disagrees with a 340 W spec field. Updated October 2026.
Charlie White (Charlie DIYte)Expert source
A solar panel kit is a set of photovoltaic modules sold with a charge controller and cables, often with brackets, to charge a 12 V battery. In the UK you buy one to top up a caravan, van, boat or shed battery, rather than to build a home array. A small panel maintains a stored battery. A mid-size panel suits light camping. A larger pair suits a van. A daily figure that assumes four hours at nameplate power is a listing claim, not a UK winter yield. PWM suits a small lead-acid maintainer. A larger array or lithium is where MPPT is the usual recommendation. 12 V is a system label. Panel voltage is higher, so series wiring must stay inside the controller input limit. Brackets, a roof gland and a battery fuse are often extra. A folding kit clips on. Fixed wiring in a dwelling falls under Part P and BS 7671 in England and Wales. Clips on a van battery do not. Watt band, controller and mounting are set out in the [solar panel kit buying guide](/hub/electrical-equipment/solar-panel-kit/sub/solar-panel-kit-buying-guide).
A solar panel kit is a set of photovoltaic modules sold with a charge controller and cables, often with brackets, to charge a 12 V battery.
26 products checked · 62 hrs invested · +21,800 readers
7 of 7: Best solar panel kits compared
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1-2 of 7Best overall
Best value
8.5/10
7.9/10
7.5/10
6.8/10
5.7/10
6.0/10
5.9/10
∼ £164
∼ £210
∼ £80
∼ £39
∼ £80
∼ £130
∼ £40
4.6(79)
4.5(105)
4.4(1,325)
4.4(16)
4.3(67)
4.2(13)
4.1(204)
Personal buying guide
Which solar panel kit fits?
Question 1 of 2
What do you need the kit to do?
The best solar panel kits in detail
Our view
The ECO-WORTHY 240 W kit is the fixed array UK reviewers bolted to van roofs and left holding a leisure battery, including on duller days. Named fits include a Renault Trafic, a VW T4, a Sprinter, and a log cabin, and one buyer charged a 100 Ah battery in just over a day. The box lists a 30 A controller with two USB ports at 5 V 2 A, Z brackets, MC4 leads, a 16 ft pair, and Y connectors, at £164.49. Amazon shows 4.6 from 79 reviews, the highest star line in this set, and on these scores it is the top pick. You still supply nuts for the self-tapping screws, roof sealant, and a cable gland, and you need a basic grasp of 12 V wiring. The listing disagrees with itself: the title says 240 W, a package line says 2 x 100 W, and a highlight says 2 x 120 W. One delivery contained only the two panels, and one review says the panels overheated and then stopped.
Pros
- 4.6 from 79 amazon.co.uk reviews, the highest star line in this set
- UK van and cabin installs, including a 100 Ah battery charged in just over a day
- 30 A controller with two 5 V 2 A USB ports, Z brackets, MC4 leads, and Y connectors
- Listing says series for 24 V or parallel for 12 V
- One reviewer kept a fridge-freezer ticking over on a single panel
Cons
- Panel wattage lines disagree: 240 W, 2 x 100 W, and 2 x 120 W
- No nuts with the self-tapping screws; sealant and a cable gland are extra
- One delivery contained only the panels
- One review says the panels overheated and then stopped working
Best for: A campervan or cabin 12 V battery if you can finish the roof glands and you live with the wattage clash.
Less suitable: A buyer who wants one wattage figure on the listing, or a fold-flat panel for weekends.
Specifications
- Model
- ECO-WORTHY 240W solar panel kit
- Brand
- ECO-WORTHY
- Price
- ∼£164
- Customer rating
- 4.6/5(79)
- Rated power
- 240 W stated
- Panels
- 2
- Controller
- 30 A PWM
- Foldable
- No
- Brackets
- Z brackets
- Connectors
- MC4 and Y-branch
- Battery types
- Lithium named
- Weight
- 17.1 kg
- Output voltage
- 12 V DC
- Wiring
- Series or parallel
Common questions
Does this kit include a charge controller and brackets?
Yes. The package list includes a 30 A controller with two USB ports, 16 ft solar cables, a tray cable, Y connectors and Z mounting.
Do the wattage lines on the listing match?
The title says 240 W. The package bullet says two 100 W panels. The highlight says two 120 W panels.
Can the panels be wired for 24 V?
The listing says the kit can be connected in series for 24 V or in parallel for 12 V.
Our view
The ECO-WORTHY bifacial kit is two rigid panels and a 30 A PWM controller for a motorhome, boat, or similar 12 V bank. One UK reviewer saw more than 200 W into a battery, another saw useful voltage on a cloudy day, and the notes include 12 V loads such as a water heater and TVs. The title says 390 W from 2 x 195 W panels, a spec field says 340 W, the weight is 23.5 kg, and the price is £209.99, with Y-branch leads, a 16 ft pair, USB at 5 V 2 A, and corner brackets. Amazon shows 4.5 from 105 reviews. More than one reviewer blamed the PWM controller for lost panel watts and fitted an MPPT unit instead. Brackets were not pre-drilled, screws were missing, or the feet did not suit a roof rack, and a Ford Transit Custom took only one panel. The kit ships as two parcels, and more than one review describes a panel that arrived broken and was replaced.
Pros
- Two bifacial panels, a 30 A PWM controller, Y leads, and corner brackets at £209.99
- 4.5 from 105 amazon.co.uk reviews
- One UK report of more than 200 W into a battery, and useful voltage on a cloudy day
- Listing names lithium, lead-acid, and gel
- Customer service sent a missing cable and replaced a broken panel in the reviews
Cons
- Title says 390 W and a spec field says 340 W
- Reviewers swapped the PWM controller for MPPT after a large watt loss
- Brackets not pre-drilled, screws not supplied, or a poor roof-rack fit
- Two parcels, and panels that arrived broken in more than one review
Best for: A larger motorhome or boat roof if you can mount both panels and you may replace the PWM controller.
Less suitable: A short van roof, such as a Transit Custom that fitted only one panel, or a single-parcel order.
Specifications
- Model
- ECO-WORTHY 390W bifacial solar panel kit
- Brand
- ECO-WORTHY
- Price
- ∼£210
- Customer rating
- 4.5/5(105)
- Rated power
- 390 W title
- Panels
- 2 bifacial
- Controller
- 30 A PWM
- Foldable
- No
- Brackets
- Corner brackets
- Connectors
- Y-branch
- Battery types
- Lithium, lead, gel
- Weight
- 23.5 kg
- Output voltage
- 12 V DC
- Wiring
- Two parcels
Common questions
Does this kit include a controller and brackets?
Yes. The package is two panels, a 30 A controller with two USB ports, 16 ft cables, Y connectors and corner brackets.
Does it arrive in one box?
The listing says the panels are in one package and the controller, cables and brackets are in the other.
What power does the listing state?
The title and package say 390 W from two 195 W panels. A specification field says maximum power 340 W.
Our view
The DOKIO kit folds into a fabric case and clips onto a 12 V leisure battery in direct sun. UK reviewers topped up caravan and camper batteries, and they ran phones and power banks from the two USB outputs on the 10 A controller. The panel is listed at 100 W, 18 V DC, 6.1 A, and 2.7 kg, with a 9.8 ft SAE-to-XT60 lead, an alligator lead, and five DC adapters, at £79.99. Amazon shows 4.4 from 1,325 reviews, the largest sample here. Several UK reviews measured about 50 W, including 52 W at midday, rather than the 100 W title. There is no fold-out tilt stand, so the panel lies flat or has to lean, and cloud cuts output sharply. One plug worked only when it was held, one unit failed on a later trip, and the jack plugs did not suit a Jackery Explorer 1000.
Pros
- Folds into a case with a pouch for the leads, item weight 2.7 kg
- 10 A controller with two USB outputs used for phones and power banks
- SAE, XT60, alligator, and five DC adapters at £79.99
- 4.4 from 1,325 amazon.co.uk reviews
- UK reviews of caravan and camper batteries topped up in sun
Cons
- Output often about 50 W, including 52 W at midday, not the 100 W title
- No tilt legs in UK reviews
- Some plugs do not match the power station, including a Jackery Explorer 1000
- Build called flimsy, with one intermittent connector and one later failure
Best for: A caravan or camper battery you can clip on in full sun, plus light USB charging.
Less suitable: Anyone counting on 100 W, a tilt stand, or a direct Jackery Explorer 1000 lead.
Specifications
- Model
- DOKIO 100W foldable solar panel kit
- Brand
- DOKIO
- Price
- ∼£80
- Customer rating
- 4.4/5(1,325)
- Rated power
- 100 W
- Panels
- 1 folding
- Controller
- 10 A PWM
- Foldable
- Yes
- Brackets
- No
- Connectors
- SAE and XT60
- Battery types
- 12 V
- Weight
- 2.7 kg
- Output voltage
- 18 V DC
- Wiring
- Clip-on leads
Common questions
Does this kit include a charge controller?
Yes. The bullets include a 100 W panel, a 10 A controller and the listed cables and adapters.
Does it fold?
Yes. The title and bullets describe a foldable panel with a fabric pocket and carry handle.
Is a tilt stand included?
UK reviews say there is no fold-out stand, so the panel is laid flat or leant against something.
Our view
The ECO-WORTHY 25 W kit keeps a small 12 V battery topped up. UK reviews cite a Ford Transit with a parasitic drain, a caravan leisure battery behind a window at a poor angle, a fishing-boat battery, and a truck fitted in about five minutes. At £38.99 the box has the 25 W panel, a PWM controller the listing calls waterproof, an SAE cable, corner guards, and mounting brackets. The listing names LiFePO4, AGM, SLA, lithium-ion, gel, and MF, and one buyer had two battery-end types. Amazon shows 4.4 from 16 reviews, with only nine written notes, so the complaint list is thin. One box had no instructions, and a longer run needed an extra lead. A 25 W panel will not carry a motorhome roof load.
Pros
- UK reviews: a Transit with a parasitic drain, a caravan leisure battery, and a fishing-boat battery held on charge
- Brackets, corner guards, and an SAE cable in the box at £38.99
- Listing names LiFePO4, AGM, SLA, lithium-ion, gel, and MF
- One truck fit reported at about five minutes
- Two battery-end types in at least one UK box
Cons
- 4.4 from 16 reviews, and only nine written notes
- One box arrived with no instructions
- A longer run needed an extra lead
- 25 W is a maintainer, not a roof array
Best for: A car, van, caravan, or small-boat battery you only need to keep topped up.
Less suitable: A motorhome roof load, or a daily watt-hour target this 25 W panel cannot meet.
Specifications
- Model
- ECO-WORTHY 25W 12V solar panel kit
- Brand
- ECO-WORTHY
- Price
- ∼£39
- Customer rating
- 4.4/5(16)
- Rated power
- 25 W
- Panels
- 1
- Controller
- PWM
- Foldable
- No
- Brackets
- Yes
- Connectors
- SAE
- Battery types
- Six types named
- Weight
- 2.28 kg
Common questions
Does this kit include a charge controller?
Yes. The listing includes a 25 W panel, a PWM charge controller described as waterproof, and an SAE cable.
Are mounting brackets included?
Yes. The title and the item highlight include mounting brackets and corner guards.
Which 12 V batteries does the listing name?
The bullets name LiFePO4, AGM, SLA, lithium-ion, gel and MF batteries.
Our view
The Hoysicy 100 W kit is one rigid panel and a 20 A PWM controller for a 12 V battery. The listing gives 36 cells, 18 V output, 21.6 V maximum, 5.56 A, a 51 x 2.5 x 101 cm panel at 6.5 kg, and 16.4 ft extension cables, at £79.99. Amazon shows 4.3 from 67 reviews. None of the 12 written reviews is marked United Kingdom, so the comments below are United States notes on the same listing. Those notes describe an easy fit on a cab-over camper and an RV, a sailboat battery kept charged, and pre-drilled holes. They also say the glass was thinly packed, alligator clips were missing or swapped for post terminals, and one controller did not stop overcharging. Components were reported rusted within weeks. Brackets are not listed, and the listing does not answer whether 24 V is supported.
Pros
- 100 W, 36 cells, and a 20 A PWM controller at £79.99
- Listed at 18 V, 21.6 V maximum, and 5.56 A
- 16.4 ft extension cables in the highlight
- US notes of a sailboat battery kept charged and camper batteries described as full
- Pre-drilled holes mentioned in a US review
Cons
- None of the 12 written reviews is marked United Kingdom
- Alligator clips missing, or post terminals supplied instead
- One US review says the controller did not prevent overcharging
- Rust within weeks is reported, and brackets are not listed
Best for: A 12 V camper or boat battery only if you accept that the written notes are from the United States.
Less suitable: A UK buyer who wants UK reviews, listed brackets, or a clear 24 V answer.
Specifications
- Model
- Hoysicy 100W 12V solar panel kit
- Brand
- Hoysicy
- Price
- ∼£80
- Customer rating
- 4.3/5(67)
- Rated power
- 100 W
- Panels
- 1
- Controller
- 20 A PWM
- Foldable
- No
- Connectors
- Solar cables
- Battery types
- 12 V
- Weight
- 6.5 kg
- Output voltage
- 18 V DC
- Wiring
- 24 V not stated
Common questions
Does this kit include a charge controller?
Yes. The included-components line is one 100 W panel, a 20 A controller and solar cables.
Does the listing confirm 24 V batteries?
A question on the page asks about 24 V systems. The visible bullets describe 12 V charging and do not confirm 24 V.
Are alligator clips guaranteed in the box?
The included-components line says solar cables. Reviews on the listing disagree about whether alligator clips arrived.
Our view
The KOLLNIUN kit puts two rigid 120 W panels and a 30 A PWM controller on a fixed 12 V array. One UK review measured about 200 W on the ground on a bright winter day and called the panels solid, with the Z brackets. At £129.99 it is £34.50 below the other 240 W kit in this set, which is why it is the best value here, with branch connectors and a 16.4 ft pair stated as 2.5 mm². Amazon shows 4.2 from 13 reviews, and only four of them are written notes. Those notes include a regulator screen that did not work and leads judged at about 2 mm² on the panels and about 1 mm² to the battery. In one review, one of two panels arrived dead, with an unsoldered tab in the junction box, and a delivery to Ireland arrived damaged and was returned. The same manual reading put the controller input near 23 V, so that reviewer paralleled the panels instead of wiring them in series on a 12 V battery.
Pros
- Two 120 W panels, a 30 A PWM controller, and Z brackets at £129.99
- About 200 W measured on the ground on a bright UK winter day in one review
- Branch connectors supplied for a parallel join
- A manual review cites lead-acid, lithium-ion, and LiFePO4 profiles
- £34.50 below the other 240 W kit in this set
Cons
- 4.2 from 13 reviews, with four written notes
- One panel dead on arrival; a delivery to Ireland arrived damaged and was returned
- Regulator screen failed in a review, and the supplied leads were judged thin
- Series wiring on 12 V was avoided because of a stated 23 V input limit
Best for: A starter 12 V array if you parallel the panels and you can return a dead module.
Less suitable: Anyone who wants a deep review sample, or series wiring of both panels on a 12 V battery.
Specifications
- Model
- KOLLNIUN 240W solar panel kit
- Brand
- KOLLNIUN
- Price
- ∼£130
- Customer rating
- 4.2/5(13)
- Rated power
- 240 W
- Panels
- 2
- Controller
- 30 A PWM
- Foldable
- No
- Brackets
- Z brackets
- Connectors
- Branch connectors
- Battery types
- 12 V and 24 V
- Weight
- 13.9 kg
- Wiring
- Parallel on 12 V
Common questions
Does this kit include a charge controller?
Yes. The listing is two 120 W panels, a 30 A PWM controller, a branch connector, solar cable and Z brackets.
Can the two panels be wired in series?
The bullets say the kit suits 12 V or 24 V batteries. A UK review says the controller 12 V input limit is about 23 V and the panels were paralleled.
Are brackets included?
Yes. The included-components line lists Z brackets.
Our view
The Hoysicy 30 W kit trickle-charges a 12 V battery through a 10 A controller the bullets call PWM. UK notes say setup was easy, a boat battery stayed charged, and a flat battery came back on a very sunny day, with more than one cable option. The panel is listed at 1.11 A and 2.54 kg, with two 6.5 ft leads, alligator clips, and O-ring terminals, at £39.99. Amazon shows 4.1 from 204 reviews. Mounting feet are not in the package list, a UK reviewer found no USB-C, and the bullets do not name lithium. A UK review says one unit was defective and caught fire on installation. The maximum-voltage field reads 1000 V, which is not a usable open-circuit figure.
Pros
- 30 W panel, 10 A controller, alligator clips, and O-ring terminals at £39.99
- UK notes of an easy setup and a boat battery held on charge
- One UK report of a flat battery recharged on a very sunny day
- Pre-drilled holes and a 12-month warranty line on the listing
- 4.1 from 204 amazon.co.uk reviews
Cons
- A UK review says a defective unit caught fire on installation
- Mounting feet are not in the package list
- No USB-C in a UK review, and lithium is not in the bullets
- The maximum-voltage field reads 1000 V
Best for: A shed, gate, or small boat battery if you can check the controller before you leave it connected.
Less suitable: A LiFePO4 bank, a USB-C load, or anyone who wants mounting feet in the box.
Specifications
- Model
- Hoysicy 30W 12V solar panel kit
- Brand
- Hoysicy
- Price
- ∼£40
- Customer rating
- 4.1/5(204)
- Rated power
- 30 W
- Panels
- 1
- Controller
- 10 A PWM
- Foldable
- No
- Brackets
- No
- Connectors
- Clips and rings
- Battery types
- AGM, flooded, gel
- Weight
- 2.54 kg
- Output voltage
- 12 V DC
Common questions
Does this kit include a charge controller?
Yes. The package line is a 30 W panel, a 10 A controller, and two 6.5 ft cables with alligator clips and O-ring terminals.
Are mounting feet in the box?
The package list does not include feet or brackets. It does mention pre-drilled holes and corner protectors.
Does the listing promise USB-C?
The connector-type field says USB. A UK review says there is no USB-C.
How we compared
Seven amazon.co.uk solar panel kit listings were scored from the shelf and the written reviews as of 19 October 2026. This is not a lab test. A manufacturer daily-energy line is not treated as measured output. Deductions cover a thin review sample, conflicting wattage lines, a dead or broken panel, a series limit, and a review that reports a unit catching fire.
1
Stars
30%amazon.co.uk stars in fixed bands: 4.1 scores 18, 4.2 scores 21, 4.3 scores 24, 4.4 scores 26, 4.5 scores 28 and 4.6 scores 30.
2
Review count
15%Under 20 reviews scores 4, 50 to 99 scores 10, 100 to 299 scores 13, and 300 or more scores 15.
3
Kit contents
25%Panel and controller, brackets, leads, named battery types, controller headroom, and a folding case or bifacial panels. A 30 A PWM unit on a 12 V array near 390 W scores no headroom.
4
Review sentiment
20%Repeated practical use in the review notes, minus ordinary complaints. Serious defects are separate deductions, not a second cut in this block.
5
Price per rated watt
10%Shelf price divided by the titled watts. At or under £0.55 per watt scores 10, then the bands step down to 3 once the price is above £1.50 per watt.
Independent review
Last updated: October 2026
8 sources checked
Solar panel kit buying guide
Use this guide to match a kit to a 12 V job before you read the table. Wattage, controller chemistry and mounting are the checks that stay useful when the brand changes. A maintainer, a camping panel and a van array are different purchases. The scores on this page come from amazon.co.uk listings and reviews dated 19 October 2026, not from a lab.
What is a solar panel kit?
A solar panel kit is a retail set of one or more photovoltaic modules sold with a charge controller and cables, and often with brackets, to charge a 12 V battery. Most UK buyers use one to top up a caravan, van, boat or shed battery. A certified home array is a different purchase. None of the kits in this comparison includes a battery or a mains inverter. The first check is the job and the energy you need in a day. A 25–30 W kit maintains a stored battery. About 100 W suits light camping.
Best for
- A stored car, van, caravan or boat battery you only need to keep topped up
- A campervan or cabin leisure battery on a fixed roof
Not ideal for
- A grid-tied home array, or a new mains circuit in a dwelling
- A listed building or a conservation-area wall facing a highway, until planning is checked
Mistakes to avoid
- 1
Buying a panel with no controller
A module on its own is not a kit for a 12 V battery. The controller is what limits charge voltage. Every kit in this set includes a PWM controller, and you still have to confirm it lists your battery chemistry.
- 2
Trusting the four-hour energy line
A daily kilowatt-hour figure that assumes four hours at nameplate power is a listing claim. It is not a measured UK average and it is not a winter yield. Size the kit for the job, then expect cloud and a flat angle to cut the result.
- 3
Series wiring past the voltage limit
12 V on the title is a system label. Panel voltage is higher. One reviewer read an input limit of about 23 V on a 12 V setting and paralleled the panels. Connect the battery before the panel, and do not lengthen a thin lead with more thin cable.
What to weigh up
Job and daily energy
HighStart with the battery job, not the largest wattage in the title. A 25–30 W kit maintains a stored battery in a car, van, caravan or small boat. About 100 W suits light camping and a day of USB charging. About 240–390 W is the range UK reviewers fit when a leisure battery has to support a campervan. A per-day kilowatt-hour line assumes four hours at the nameplate power. Treat it as a listing claim. It is not a UK winter yield, and it is not a measured average.
Controller, voltage and mounting
HighPWM is acceptable on a small lead-acid maintainer. For a larger array, shade or a lithium battery, MPPT is the usual UK recommendation, once the array is more than a trickle charger. Confirm the listing names your chemistry. A 12 V or 12/24 V title is a system label. Panel voltage is higher, and series wiring can exceed a 12 V input limit. One reviewer paralleled two panels after reading a limit of about 23 V.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
A fixed kit on a campervan
You have roof space and you can finish glands and sealant. The ECO-WORTHY 240 W kit is about £164.49, with a 30 A controller and Z brackets. It is the top pick on these scores. The listing still disagrees on panel wattage.
A shed or a starter array
You want a fixed pair and you will stop if the job becomes a new mains circuit. The KOLLNIUN kit is about £129.99, with two 120 W panels, a 30 A PWM controller and Z brackets. Parallel the panels if the 12 V input limit is about 23 V. The review sample is 13.
Common questions about solar panel kits
Which solar panel kit is the top pick in this comparison?
The top pick is the ECO-WORTHY 240 W kit at about £164.49. It scored 85, the highest mark, with 4.6 from 79 amazon.co.uk reviews, a 30 A controller, Z brackets, MC4 leads and Y connectors. UK reviews describe van roofs and a cabin battery. The listing still disagrees on 100 W versus 120 W panels, and one delivery contained only the panels. The score is listing evidence, not a lab test, and the kit is not MCS certified.
How much does a solar panel kit cost?
On amazon.co.uk the seven kits here ran from about £38.99 for a 25 W maintainer to about £209.99 for a kit titled 390 W. The two 100 W kits were about £79.99. The 240 W class sat at about £129.99 and about £164.49. Those are shelf prices for this set, not a market average. MCS put a certified home installation in 2025 at just over £7,000. The 0% VAT rate applies to a qualifying installation until 31 March 2027, not to a self-bought kit.
What should I check before I buy a solar panel kit?
Match the wattage to the job. A 25–30 W kit maintains a stored battery, about 100 W suits light camping, and about 240–390 W is the band fitted to campervans. Confirm the controller lists your battery chemistry. PWM is a reasonable fit on a small lead-acid maintainer. A larger array, shade or a lithium battery is where UK guidance usually points to MPPT. Check the controller voltage limit before you series-connect panels, and check whether brackets, a fuse and a roof gland are in the box.
Should I keep the PWM controller or look at MPPT?
Every kit kept for this comparison ships with a PWM controller. PWM is acceptable when you are only maintaining a small lead-acid battery. For a larger array, shade or a lithium battery, MPPT is the usual UK recommendation. A 30 A label is not a promise that the controller delivers 30 A. When to keep the included controller, and when to replace it, is set out in the PWM and MPPT guide. That page is a technology choice, not a second ranking of these boxes.
Do I need planning permission or a grid notification?
In England, solar equipment on a home can be permitted development under GPDO 2015, within 0.2 m of a pitched roof and 0.6 m above a flat roof. Conservation areas, listed buildings and scheduled monuments are tighter, and Scotland, Wales and Northern Ireland differ. These 12 V kits do not export unless you add a grid-tied inverter. If you connect to the grid, G98 is a notification within 28 days at or under 16 A per phase. Above that, G99 means you ask the network operator first.
When should I call a professional?
Call a competent person for a house roof, a new mains circuit, an inverter on household sockets, or anything that exports to the grid. Part P and BS 7671 cover fixed wiring in dwellings in England and Wales. Clips on a van battery are a different job. Check planning on a listed building or a conservation-area wall facing a highway. Electrical Safety First says plug-in solar still needs a check, and plug-in batteries do not belong on a grid-connected home.
Is the daily kilowatt-hour figure a UK yield?
No. A figure such as 0.96 kWh per day assumes four hours at the nameplate wattage. It is not a measured UK average, and it is not a winter yield. Cloud, a flat angle and a short day cut what reaches the battery. UK reviews of one folding kit measured about half the titled watts in sun, including 52 W at midday against a 100 W title. Use the line as a listing claim, then size the kit for the job you can actually see.
Can I replace the controller that comes in the kit?
Yes, but it is a separate purchase. The kits here include a PWM controller. On the bifacial pair, more than one reviewer fitted an MPPT unit after seeing a large loss of panel watts. Match any replacement to the panel voltage and to the battery chemistry, and do not series-connect panels past the input limit. Controllers on their own are compared in the solar charge controller comparison. None of these kits includes a battery or a mains inverter.
Our verdict
In this set of seven amazon.co.uk kits, the top pick is the ECO-WORTHY 240 W kit at about £164.49, with 4.6 from 79 reviews and a score of 85. It is a fixed array with a 30 A controller, Z brackets and MC4 leads, and the wattage lines on the listing still disagree. The best value is the KOLLNIUN 240 W kit at about £129.99: two 120 W panels whose wattage lines agree, with Z brackets and a 30 A PWM controller. The 25 W and 30 W kits are battery maintainers, not a cheaper version of that array. Scores use listing data and reviews, not a lab test, and none of these kits is MCS certified.
Best overallView offer
ECO-WORTHY 240W solar panel kit
Highest score in this set, 85, from 4.6 from 79 reviews and a full Z-bracket kit at about £164.49. The listing still clashes on 100 W versus 120 W panels, and one delivery contained only the panels.
Best value
View offer
KOLLNIUN 240W solar panel kit
Cheapest two-panel kit whose wattage lines agree: 2 x 120 W, a 30 A controller and Z brackets at about £129.99. The 390 W kit costs more and its title disagrees with a 340 W spec field.
Editorial
Editor
Solar panel kits12 V chargingamazon.co.uk listings
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Updated: October 2026
8 sources checked
Guides to solar panel kits
Guides on what to look for, how to use a product, and common mistakes.
Solar panel kit buying guideWatt band, controller and mounting, without ranking the seven kits.Best solar panel kitWhich kept kit fits which job, and who should skip it.How to connect a solar panel kitController, fuse and 12 V battery, as a wiring procedure.Solar panel kit for a campervanRoof space, weight and a leisure battery. Not a shed guide.PWM vs MPPTWhen to keep the included PWM controller, and when to replace it.
Related comparisons
Sources
Public UK sources and the amazon.co.uk listings used for this comparison. Prices and star ratings are the listing lines from 19 October 2026.
- GOV.UK: Register energy devices in homes or small businesses (retrieved 19 October 2026)
- legislation.gov.uk: GPDO 2015 Schedule 2 Part 14 (retrieved 19 October 2026)
- GOV.UK: VAT Notice 708/6, energy-saving materials (retrieved 19 October 2026)
- GOV.UK: VAT on energy-saving products (retrieved 19 October 2026)
- National Grid: G98 microgeneration (retrieved 19 October 2026)
- Electrical Safety First: solar panels (retrieved 19 October 2026)
- MCS: why certification matters (retrieved 19 October 2026)
- Azeco: PWM versus MPPT charge controllers (retrieved 19 October 2026)
Expert source (DIY & tools): Charlie White (Charlie DIYte) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
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