AquascapePRO transformers are designed to be used with LED and Halogen fixtures. Photocell automatically turns lights on at dusk. Optional 4, 6, or 8 hour intervals. Usable with standard low-voltage landscape lighting. Comes with 25 ft. of low-voltage lighting cable. Does not need to be reset after power outages or daylight savings. Transformer comes with 3' power cord.