Solar cable buying guide
Updated: October 2026
You are on amazon.co.uk with a solar lead in the basket, and the parent title still lists 1 m through 30 m and both 4 mm² and 6 mm². A solar cable buying guide has to tell you which variant you are actually paying for before you care about the stars. Some listings are photovoltaic DC cable. Others are 12 V to 36 V accessories in the same search. Prices are the GBP shelf figures checked on 21 October 2026. It is not a lab test. The twelve rows sit on the [solar cable comparison](/hub/electrical-equipment/solar-cable).
You are on amazon.co.uk with a solar lead in the basket, and the parent title still lists 1 m through 30 m and both 4 mm² and 6 mm².
You are on amazon.co.uk with a solar lead in the basket, and the parent title still lists 1 m through 30 m and both 4 mm² and 6 mm². A solar cable buying guide has to tell you which variant you are actually paying for before you care about the stars. Some listings are photovoltaic DC cable. Others are 12 V to 36 V accessories in the same search. Prices are the GBP shelf figures checked on 21 October 2026. It is not a lab test. The twelve rows sit on the solar cable comparison.
Our top picks
| Badge | Product | Cable job | Cross-section | Connector | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Chedin Chedin solar extension, 1 m variant | MC4-type pair | Bracket 4 mm² | MC4 male-female | 8.0 | about £6.99 | View offer |
 iGreely iGreely 6 mm² solar extension, 3 m red and 3 m black | MC4-type pair | About 6 mm² | Fitted plugs | 8.6 | about £19.99 | View offer | |
 LukAro LukAro black 6 mm² PV cable, 3 m | Bare PV wire | 6 mm² | None | 6.5 | about £11.99 | View offer |
On this page
What you are actually buying
A solar lead in this set is one of three things. Bare photovoltaic wire is a single colour with no connector, such as the LukAro black 6 mm² coil at £11.99 for 3 m. An MC4-type pair is two pre-terminated leads, or one flat sheath that holds both cores. A low-voltage lead is different: the XMSJSIY SAE port is capped at 36 V, 30 A and 360 W. No certificate was in the files, so this guide does not call any listing certified. The millimetre choice is on 4 mm² or 6 mm² solar cable. The plug family is on MC4 or SAE solar cable.
Six checks before you add it to the basket
Start with voltage class, not with the star line. A bullet that says 1,500 V DC is speaking the language of a fixed string. An attribute that says 12 V, 18 V or 48 V is a different job. The LukAro file contains both a 1,500 V DC bullet and an 18 V attribute. Cross-section comes next. In this set, 4 mm² is the usual short run and 6 mm² is the step up for a longer run or a drop that already fails in 4 mm². A title that says both 10 AWG and 6 mm² is not a measurement. MC4 is a Stäubli product name. BEAMA and Stäubli say not to mate photovoltaic connectors from different manufacturers. A string needs both colours. The LukAro ASIN is black only.
When the listing contradicts itself
Solvazcable’s title and model say 6 mm² and 10 m, at £35.99. The technical bullet still says each cable is 3 m and 4 mm². If the title, the bullet and the model do not name one cable, leave the basket.
Chedin’s 4 m model, 4mm²4m, then calls the maximum voltage 12 V DC, while the 1 m ASIN carries a 1,500 V attribute. You cannot treat the 12 V line and the photovoltaic bullets as both true. iGreely’s title matches 3 m plus 3 m, and the part number still says 10 AWG 10 ft.
When you stop and call someone
A pre-terminated pair for a portable panel is a plug you can refuse to mate. A new fixed array on a house is not that job. Approved Document P puts roof photovoltaic work on a dwelling inside electrical safety. Call a competent person when the array is fixed to the building, when you cannot account for the string voltage, when a connector is hot or browned, or when the installation has to be notified. The mating sequence is on how to connect a solar cable.
Common questions
Is a model field that says H1Z2Z2-K the same as print on the sheath?
No. Chedin’s 1 m listing uses H1Z2Z2-K as a model field. BS EN 50618 is the standard trade summaries cite for that code, with a nominal 1.5 kV DC. The field is not the print, and this comparison has not seen a certificate for that ASIN. If the manufacturer, the code and the mm² are absent from the sheath, treat the cable as unmarked.
Why does the bullet say 3 m when the title says 10 m?
Because the parent listing was copied across variants and not edited. Solvazcable’s £35.99 title says 6 mm² and 10 m. The technical bullet still says each cable is 3 m and 4 mm². Both sentences are in the saved listing. You cannot choose the sentence you prefer. If you need 10 m of 6 mm², this listing has not shown you that product, and the shared 4.5 from 112 reviews does not separate the two ASINs.
Do I need red and black, or is one black coil enough?
A string needs both polarities. One black coil is enough only when you already own the red core and a proper crimp tool. LukAro at £11.99 is black, 3 m, 6 mm², with no connector. UK reviews say buyers who expected red did not receive it, and the install stopped. A title that offers black and red as colour options is not the same as both colours in this ASIN’s box.
Are TÜV or CE in the attribute row a certificate?
No. On the 10 m Solvazcable row, CE and TÜV are words in an attribute. No certificate was stored with the listing, and this guide does not treat an Amazon attribute as a document you have read. The same applies to an IP67 or IP68 claim. It is a seller line. It does not make a connector safe in standing water, and it does not prove the sheath print.
Can I trust the star rating if two lengths share it?
You can trust it as a family comment, not as a test of the variant in the basket. Chedin’s 4.8 from 1,105 is on both the £6.99 1 m ASIN and the £14.99 4 m ASIN. Solvazcable’s 4.5 from 112 is shared by the 5 m and 10 m titles. iGreely’s 4.7 from 2,201 sits on a title that matches a 3 m pair, and it is still not a measured cross-section.
Related pages
Sources
Public UK sources are listed below. Shelf prices and star lines are the amazon.co.uk figures checked on 21 October 2026.
- Tratos, BS EN 50618 (retrieved 21 October 2026)
- BASEC, solar photovoltaic cables (retrieved 21 October 2026)
- Prysmian PRYSUN datasheet (retrieved 21 October 2026)
- MCS installation guide (retrieved 21 October 2026)
- MIS 3002, solar PV systems (retrieved 21 October 2026)
- BEAMA technical bulletin, DC PV connectors (retrieved 21 October 2026)
- Stäubli, cross-mating of PV connectors (retrieved 21 October 2026)
- Approved Document P (2013) (retrieved 21 October 2026)