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How to install solar ground lights

Updated: 22 October 2026

The disks are on the path, dusk has arrived, and nothing has come on. How to install solar ground lights, for the packs in this comparison, is a short sequence: switch on, film off, open sky, then the stake. Most of these units ship switched off, and the stake hides the button once it is in the soil. The models are on our [solar ground lights comparison](/hub/garden-decor/solar-ground-lights). Figures below are amazon.co.uk extracts from 19 October 2026. Peter F. did not fit these ASINs in a lab. A qualifying purchase can earn a commission at no extra cost to you.

The disks are on the path, dusk has arrived, and nothing has come on. How to install solar ground lights, for the packs in this comparison, is a short sequence: switch on, film off, open sky, then the stake.

Our top picks

Torchtree Torchtree 8-pack solar ground light

Best overall

Torchtree Torchtree 8-pack solar ground light
9.2/10about £13.22
View offer
btfarm btfarm 10-pack solar ground light

Best value

btfarm btfarm 10-pack solar ground light
9.0/10about £16.56
View offer
Caldarax Caldarax 4-pack solar ground light

Alternative

Caldarax Caldarax 4-pack solar ground light
9.0/10about £11.04
View offer
On this page
  1. 1.Before the stake goes in
  2. 2.Soil, sun, and the cover test
  3. 3.When it still will not run
  4. 4.What not to do with the housing

Before the stake goes in

Find the switch before you push anything into the ground. btfarm, Dankeled, Caldarax, and YiLaie say set the switch to ON before the stake goes on. Torchtree says turn it on before use. iBaycon says peel the plastic film and turn on the switch on the back. If you bury the base first, you will be pulling the disk up in the dark. Lights4fun’s long first charge with the switch off is a different product. Do not copy it. These bullets say ON, then fit. Peel any factory film you can see. iBaycon’s bullets say so. Left on, the film cuts the charge. Which box to buy stays on best solar ground lights.

Soil, sun, and the cover test

Choose a spot with direct sun for several hours. A flush panel cannot be tilted south. A north wall or a fence shadow is the usual reason a set does little in October. Loosen hard soil. Torchtree’s bullets say that. btfarm’s spiral nail twists into the back, then into the ground. Caldarax uses two spikes. Push until the disk sits firm. Ignore a collar-level step from a tall stake lamp. That sheet is a different product. Do not score the pack on the first evening. Leave it through a day of open sky. To test the sensor before dark, cover the panel. A working dusk sensor should come on. If nothing happens, check the switch, the film, then a day of charge. A porch light can hold the sensor off because the panel thinks it is still day.
Torchtree Torchtree 8-pack solar ground light

Testsieger

Torchtree Torchtree 8-pack solar ground light
9.2/10about £13.22
View offer

When it still will not run

Shade is the common miss. Move one unit into open sun for a day and repeat the cover test before you return the whole pack. One iBaycon review describes a disk that stays on in daylight and sleeps at night. That is a faulty sensor, not the wrong colour. Isolate that unit. Winter limits the hour claim. Ideal Home says shorter UK days mean a weaker charge. One Caldarax review describes about 2–3 hours in the North East of Scotland in October. That is one garden, not a rate. IP codes and cell claims stay on the buying guide. If the lens has filled, stop. Water-inside notes appear for iBaycon, the shared Dankeled pool, and a Caldarax rain comment. Do not dry a damaged cell on a sunny sill. An IP bullet is the seller’s claim, not a repair.

What not to do with the housing

Do not mow over the disk, and do not put it in a tyre path. A single comment about stepping on one is not a load rating. Do not crack the case to swap a cell unless the listing shows a user-replaceable battery. YiLaie has a review that says the shell is sealed. A swollen, hot, or leaking cell is a stop. Recycle it. Do not tie these disks into a 230 V cable. Call a professional for a cut deck, a membrane, house electrics, or joists you cannot see. Screws and tape for a surface disk are on solar ground lights for decking. If one unit still lights backwards or fills with water after a day of sun, return that unit.

Common questions

Where is the switch, and when do I press it?
It is on the back or the base, and you set it to ON before the stake hides it. btfarm, Dankeled, Caldarax, YiLaie, Torchtree, and iBaycon all say a version of that. If you fit first, you will be lifting the disk out of the soil to reach a button you can no longer see.
How do I test the sensor before dark?
Cover the panel. A working unit should light. Festive Lights describes that check. If it stays dark, confirm the switch, remove any film, and give it a day in open sun before you call the pack a failure. Uncover it again so it can charge.
What if it lights in the day and dies at night?
Treat that unit as faulty. One iBaycon review describes exactly that pattern. It is not a colour-temperature problem and not a winter problem. Pull it from the run so it does not sit charging in reverse while the others behave.
Why did it die before midnight in November?
Short UK days put less into the cell. Ideal Home and Which? both say runtime drops, and neither measured these disks. A Caldarax review of 2–3 hours in the North East in October is one report, not a specification. Compare the evening with the hours of sun on that panel, not with an 8–10 hour summer bullet.
What if water is inside the lens?
Stop using that unit. Water-inside notes appear for iBaycon, the shared Dankeled reviews, and a Caldarax rain comment. Do not dry a damaged cell on a sill, and do not keep charging it. Return it or recycle it. The IP bullet does not undo a lens that has already filled.
When do I stop and call someone?
When the job becomes a cut deck, a membrane, house electrics, or joists you cannot see. A swollen, hot, or leaking cell is a stop you handle yourself only by not opening it and by recycling it. A soil stake that will not hold in bone-hard ground is a different problem: loosen the soil, or choose a screw kit if the surface is timber.

Related pages

Solar ground lights buying guide

Solar ground lights

Best solar ground lights UK: border, pack, or deck

Solar ground lights for decking: screws, not a spike

Warm white vs cool white garden lights on one path

Sources

Public UK sources used for low-voltage scope, product safety, electrical waste, IP codes, winter charging, and colour temperature. amazon.co.uk prices, stars and review counts were taken from the eight listings on 19 October 2026. Seller lumen, runtime, and IP lines were not measured.

  1. Electrical Equipment (Safety) Regulations 2016 (retrieved 19 October 2026)
  2. GOV.UK, General Product Safety Regulations 2005 (retrieved 19 October 2026)
  3. OPSS product safety report, Lyyt solar security light, 12 August 2024 (retrieved 19 October 2026)
  4. GOV.UK, recycling batteries and electrical waste (retrieved 19 October 2026)
  5. B&Q outdoor lighting buying guide (retrieved 19 October 2026)
  6. Festive Lights, solar lights troubleshooting (retrieved 19 October 2026)
  7. Ideal Home, do solar lights work in winter (retrieved 19 October 2026)
  8. Moonlight Design, outdoor lighting colour temperatures (retrieved 19 October 2026)