—Design decisions
Designing pool lighting
Underwater lights are fixed when the shell is built. Planning them with the design avoids dark corners and glare into the house.
Underwater lights are set in niches or mounted in the walls, and their positions are fixed during construction. The number depends on the pool’s size and shape; spacing them evenly avoids patches of darkness. Lights are usually positioned to shine away from the main viewpoint so the house does not see glare.
Design guides set out the choices that are hard to change once the shell is built.
Colour-changing lights allow different moods; white light shows the water and finish clearly. Lighting around the pool — steps, deck, planting — completes the effect and improves safety at night. Controls can link pool and garden lighting into scenes or timers.
01Summary
What matters most here
Fixed at construction
Positions are decided before concrete.
Avoid glare
Point lights away from the house.
Light the surroundings
Steps and deck for safety.
02Detail
Lighting choices
Number and spacing
Enough lights, spaced evenly along the walls, to light the whole pool without bright spots next to dark corners.
Colour
White light shows the finish and water clearly; colour-changing fittings add moods for evenings and events.
Step lights
Marking entries at night.
Deck and garden
Low-level lights around the pool.
Controls
Switches, timers or automation scenes.
Fitting type
LED fittings use less power and run cooler than older lamp types, and are the usual choice for new pools.
03Before you start
During design
Mark the main viewpoint
Usually the living room or terrace.
Plan cables and controls
With the electrician.
Choose colours
White, colour or both.
—In practice
How to use this
Plan light positions at the design stage: enough lights for the pool’s size, spaced to avoid dark patches, and aimed away from the main viewing points in the house. Decide between white and colour-changing lights and how they will be controlled. Plan cable routes and junction boxes so lights can be maintained later without disturbing finishes.
Mistakes worth avoiding
- Lights facing the house
- Lights pointed towards the main viewpoint cause glare from the living room. Aim them away from where people look.
- Too few lights
- Dark corners make a pool look smaller and less inviting at night. Spacing matters as much as the number of fittings.
04FAQ
Common questions about this
- How many pool lights are needed?
- It depends on size and shape; even spacing avoids dark patches.
- Why point lights away from the house?
- To avoid glare when looking at the pool.
- Are colour lights worth it?
- They allow moods; many owners use white most of the time.
- Can lights be added later?
- With difficulty; niches are cast into the shell.
- Do pool lights need a special supply?
- Yes. Underwater lighting uses supplies and protection suited to pools, designed by the electrician.
05Read next
More pool guides on this
- Adding water features to a poolA related design decision.
- Choosing pool copingA related design decision.
- Excavating for a poolAnother stage of planning and building a pool.
- Getting machinery and materials to the pool siteAnother stage of planning and building a pool.
Filed under new pool construction. Every pool guide is listed on the pool guides page.
—NEXT
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