This underwater pond light transformer can hold up to 7 underwater pond lights. This transformer has the convenience of a photocell without the hassle of a dial timer. The photocell automatically turns on at dusk. Additional settings allow lights to automatically turn on a dusk and then off at 4,6,8 hour increments after that. Can provide power to seven 20 watt Aquascape Designs underwater lights. ponddepot@msn.com Copyright - All World Rights Reserved Pond pumps, Pond Kits and Pondless Waterfall kits, Underwater Pond Lights. Aquaclearer Extreme bacteria and String Algae Buster and pond fish food. Pond Depot provides Do-it-yourself pond kits and Pondless waterfall kits delivered right to your home at great prices! Thank you for shopping at Pond Depot you online pond superstore!