Hayward SP0535SLED100 ColorLogic 4.0 LED Spa Light, 120-Volt, Stainless Steel Face Rim, 100-Foot Cord 12 Preset programs - 5 fixed colors and 7 color changing shows Sealed unit requires no maintenance UL listed for fresh water 12-Volt and 120-Volt available No moving parts, The diameter of the light is 6 with a depth of 5.