Garden path with solar lights at dusk in a UK garden.

How to Plan and Install Garden Lighting

ByHannah Heidi October 14, 2026October 14, 2026

Solar lights are easy to move and need no electrician. Mains or 12 V systems give consistent brightness through the winter but cost more to install. Plan the paths and the places you actually use at night before you buy any fittings.

Most UK gardens get less reliable solar performance from November to February. If you want light you can count on for evening use, a 12 V plug-and-play system or a properly installed mains circuit is more predictable.

Decide what the lights need to do

Path markers and accent lights can be solar. Patio and seating areas that you use most evenings benefit from brighter, more reliable light. Security lighting near doors usually needs mains power.

Compare the main options

Solar lights and 12 V transformer compared for garden lighting.

Type	Install	Winter performance	Best for
Solar	DIY	Reduced hours	Paths, accents
12 V	DIY	Consistent	Features, patios
Mains 230 V	Electrician	Consistent	Security, large areas

Plan the cable runs and positions

Low-voltage garden lighting cable along a path edge.

Mark the paths, steps and the areas where you sit. For a 12 V system, the transformer plugs into an outdoor socket. Run the low-voltage cable along edges or under gravel where it is protected. For mains, a registered electrician is required for new circuits under Part P.

Install solar for quick results

Place solar lights where they get daylight. Stake path lights along edges, clip string lights to fences, or screw wall lights to solid surfaces. Reposition them if the light is weak after a few weeks.

Conclusion

Start with the places you walk and sit after dark. Use solar for flexible accent lighting. Use 12 V or mains where you need reliable brightness through the winter. Check Part P rules before any new fixed outdoor circuit is installed.

FAQs

Do solar garden lights work in the UK winter?

They run for fewer hours because the days are shorter. Many path lights that give eight hours in July may only manage two or three hours in December.

Do I need an electrician for garden lighting?

New 230 V circuits are notifiable under Part P and need a registered electrician. 12 V systems that plug into an existing outdoor socket can usually be done as DIY.

Hannah Heidi

I write about interior design for GenZ Interior, covering everything from kitchens and living rooms to paint, panelling, and the small details that make a room work. With 15 years of hands-on experience across the trade, I like to focus on what's actually practical, not just what looks good in a photo. When I'm not writing, I'm probably still thinking about someone else's room layout.