Swimming Pool Underwater Lights
Swimming Pool under water lighting in the pool creates a nice and pleasant atmosphere in the evening. Swimming Pool lighting create a distinct ambiance which is great when you entertain guests at the pool side. There are different types of pool lights such as incandescent, halogen, PAR 56 and latest is LED lights.
For inground concrete pool, the swimming pool lights are installed in stainless steel / plastic niche.

Pentair Large Stainless Steel Niches
Above ground pool will use wall mount pool lights or nicheless lights which are easy to install.

Pentair AquaLuminIII Pool Light
Major US manufacturers are Hayward, Pentair, Sta-Rite (SunBrite, SunGlow – obsolete / Sunlite – replacement only) and SwimQuip (replacement only).
There are other manufacturers such as Bega, Pahlen and Savi.