SunSeeker QUAD Electronic VHO Lamp Driver The SunSeeker QUAD Electronic VHO Lamp Driver will power 2, 3 or 4 VHO fluorescent bulbs with a combined length of up to 12 feet. It also has a connection for the optional Dimmer Control Module, which allows for simulation of sunrise and sunset over the aquarium. Wiring Diagram 2 Bulb setup: Connect lamps using 2 Red, 2 Blue and 2 Yellow wires ONLY. (Do not use either of the double pin connectors.) 3 Bulb setup: Connect lamps using 2 Red, 2 Blue, 2 Yellow wires PLUS - 2 wires from ONE double pin connector. (Use only 1 of the double pin connectors.) 4 Bulb setup: Connect lamps using 2 Red, 2 Blue, 2 Yellow wires PLUS - 4 wires from TWO double pin connectors. (Use 2 of the double pin connectors.) Installation Tips: ~Only use VHO approved end caps. ~Never mount QUAD inside of aquarium hood or high moisture areas. ~Only use 3-prong grounded plug. ~Plug Unit into GFCI protected outlet. ~Never exceed 12 feet combined lamp length. ~For use with 110 Volt, 60 Hertz.