* Aquarium light timer for automated photoperiod (light cycle) * Compact, easy-to-set timer simplifies custom aquarium lighting * Designed for aquarium use and grounded for operational safety Automate aquarium lights safely and with ease. The new Marineland Aquarium Light Timer is designed especially for use with all freshwater and marine aquarium light fixtures. Easy-to-set, compact timer is grounded for operational safety and is rated at 15 amps. Space-efficient plug arm does not block outlets on power strips. Features a manual override for added safety.