Regulate your lighting schedule easily with an Aquarium Light Timer. Deter algae growth and provide your fish with a stress-free schedule of day and night. Works with any lighting system and features a manual override, safety grounding, and a full 15 amps of power- twice the power of other timers. Compact and space efficient, it won't block your other outlets. This simple and easy-to-set timer from Marineland is ideal for maintaining a healthy tank.