DAY NIGHT TIMER The Power Center is a day night dual timer device that provides complete 24 hour lighting cycles from dawn, noon, dusk and nighttime. WAVE MAKER APPLICATION The Power Center can control two sets of water pumps using the alternating timer (total of four outlets) at 15 minute intervals (min.) or more to create a wave maker application. The two sets of outlets will interchange between each other based on the timer setting. This wave maker application creates a natural rhythm in your aquarium that replicates ocean tidal movements. Product Information: Aqualight Power Center Controls 3 Sets of Lights Dual Day Night Timers Alternating Timer 2 Actinic Outlets 2 Lunar Light Outlets Day Shift Timer 3 10,000K Daylight Outlets Constant Power 1 Outlet Multiple Timer Settings 24 Hour Mechanical Timer 15 Minute Interval Setting Optional Wavemaker Application Creates Natural Rythmic Waves Great for switching water pumps to create alternating water currents Up to 1875 Watts 15 Amp Dime