This Sta-Rite UL listed SwimQuip underwater pool and spa light utilizes a heavy copper shell construction. High-impact lens with many small prisms, designed to reflect light rays throughout the pool, yet eliminates undue glare from above. UL and CSA listed for freshwater. It should be installed with its own ground fault circuit interrupter (GFCI). 120-Volt light, 25-feet cord length and 500-watt.