ECONOMICAL ABOVE-GROUND POOL LIGHT. Tested to UL Standard 676 and certified by ETL . 12 volt outdoor pool transformer . Easy installation - no drilling or draining of pool. Patented reflector design engineered for maximum illumination. One light sufficient to illuminate any above ground pool. It will not interfere with water return.Includes chemical resistant lens, fuse overload protection, and a 28 ft. Cord (including transformer and plug).