custom control running entire tank, top 4 swiches are first, 400 watt 20k metal halide,( all switches operate in manual off and automatic), second is 260 watts of pc 12 k, third is 390 watts of actinic pc, and fourth is moonlights, second row is 3 fans , 2 in and 1 out as exhaust, bottom row is closed loop pump, second is skimmer pump and third is return pump.. and the bottom silver switch is a sump light , so I can see when I am worj=king under there... I haven't had a chance to label all the switches yet..but soon