How Many Lights Do I Need For My Pool?

Are you in the process of building your pool and can’t really decide how many lights you need? Choosing the right number of lights for your pool can maximize your pool’s beauty and safety. But I bet you’re wondering, “How many lights do I need for my pool?” Before you can answer that, let’s run through all of the preliminary things you need to consider before purchasing your lights for your new pool.

What To Consider Before Purchasing a Light

Before purchasing and installing your swimming pool lights, there are a few general design aspects you should consider first. Ask yourself these questions:

  • What is the purpose of the lights?
  • What kind of pool finish do I have?
  • Are there areas of my pool that need more lighting than others?
  • What is the size and shape of my pool?
  • Do I want a colored or white pool light?
  • Where am I placing the lights?

Together, we will address each area.

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Establishing The Purpose

Pool owners utilize their pool for a variety of reasons. Make sure your pool lights are a reflection of your needs. Are you using your pool for fitness purposes or is it more for time with the family? You might even own a pool for aesthetic purposes only. (Trust us, there’s a ton of people out there who do- Google it!)

Fitness Use: Fitness pools are typically lit from the sides so that the swimmers don’t swim directly into beams of light.

Family Use: Because recreational pools usually contain the most light,  pay attention to safety areas such as steps, entrances, and exits. There should be enough light to safely assist swimmers in and out of the pool.

For Aesthetics: Most pools used for aesthetics purposes keep the lights flushed with the wall of the pool, using a 1.5″ inlet fitting. Usually, they are the nicheless lights.

The Finish On Your Pool

It’s not just the brightness of the light that matters, but also the color on the finish of your pool. The interior color and texture of your pool can strongly affect the quality of your light. In fact, some colors will appear brighter than others in the water, especially towards the deeper end.

For light to medium pool finishes, colored or white lights are sufficient. Choose the lower wattage pool lights for lighter finishes and higher wattage lights for medium finishes.

For dark finishes, depending on the darkness, the color can be absorbed by the finish. When that happens, some colors may not be visible, especially in the deeper ends. In darker pools, the colored lights tend to be concentrated in one area as opposed to a wide beam you normally see. In most cases, the best option is to purchase a white light.

Colored Lights On a Dark Finish Pool

How Many Pool Lights Do I Need?

Unfortunately, there isn’t a clear-cut standard that dictates how many lights a pool should have. For a long time, most pool contractors recommended a single pool light for small pools. However, we wanted to dive a little deeper than that. So, we reached out to a few pool professionals to get a better idea of how (and why) they recommend lights for new swimming pools. Here is the information we gathered.

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The Conclusion

A measure to consider when purchasing your pool light is the Kelvin rating of the light. The higher the rating, the ‘cooler’ the light is. Incandescent lights are considered ‘warm’ lights, while LEDs are cool lights, which gives them the intense bluish color.

Place lights strategically to avoid dark spots. This depends on the beam of light. Most pool lights are required to be a minimum of 18″ underwater and should face away from the house or sitting areas.

  • A 15 x 30 pool is the maximum size we recommend for using one light. If using one light for the entire pool, place the light at the deep end of the pool in a narrow beam (if that’s an option).
  • A 20 x 40 pool could get away with 2 lights.
  • A 20 x 42 pool probably needs 3 lights. For pools with 3 lights, we generally suggest placing the lights 5 feet from each end of the pool and equally spaced between.

** These are not definitive because you also need to consider the type of finish on the pool. A dark finish might take 3 lights where you could use 2 for a lighter finish.**

Unfortunately, most of this information is only valuable before completing the construction of the pool. If the house you move into has a pool, you are limited by the existing lights. Still, information such as the light’s lumens rating, light output, and vertical beam shape, helps any pool owner looking to maximize the lights in their pool. It may also give you an idea of why certain lights appear duller in your pool as opposed to your neighbor’s.

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19 thoughts on “How Many Lights Do I Need For My Pool?

  1. I am building a rectangular 20′ x 46′ pool, 3.5 ft deep on each end, 5 ‘ in the middle.

    Neighbors are concerned about light pollution as this is way out in country …. what is the minimum light package you could suggest.

    1. We’re missing a lot of key factors here.

      How far away is the pool from their house? If the lights are placed in the deep and shallow ends facing each other, would either be pointing in the direction of their house? How bright do you want/need the pool? And the most subjective one of them all: What do they consider “light pollution”?

  2. Hello:

    I am getting a new pool built. I was never able to speak to the pool company is through a builder.

    we are getting a single ended roman 12×24 pool. It shows one light on the deep end. Is that enough? Should we invest in getting lighting by the steps on the opposite side? We would like to use the pool at night time too. Thank you

    1. I have a 25 feet wide swimming pool which is not underground pool. How many lights can we have in the water and what watts can be used?

    2. I had a 20×40 with a single light in the deep end and it worked out just fine because of the simple shape of the pool.

  3. A. In general, 21 watts/12V warm white(2700 k) pool led light is equivalent to how many watts incandescent light?

    B. 300W12V E27 incandescent pool light is equivalent to how many watts warm whilte LED light(2700K) ?

  4. I had a inground pool built geo metric and one Pentair led light was used – I questioned the placement of the light in the pool and pool builder said enough light – the light is placed in part of pool that does not directly face end of pool with steps and light does not bend around pool to reach entire are so I have a half lit new inground pool . What lighting options do I have ?

  5. Do you guys sell a lighting system that changes colors Etc by remote control? I already have two lights in my pool so the housing and wiring is there but I’d like to buy a light system that can be controlled remote control from inside the house

  6. Hi. I have a sp0502 fixture which is no longer made. Hayward pool light 12v 300w sealed beam. Would you know the replacement style or type?. Thanks

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