ok electronic ballasts are different, you can make them configurable by the amount of leads you use per bulb. so, if you use 1 red wire you are putting out the current level for an NO bulb or about 0.4 amps. If you hook two red wires to one side of the bulb then you are running HO configuration at 0.8 amps, If you use 3 red wires to one side of the bulb you are running VHO output at 1.5 amps. myself I use all 4 wires to two VHO bulbs in series so I am actually overdriving VHO bulbs, but I don't recommend wiring this way unless you know what you are doing as we have seen hooking it up wrong in a series overdriven VHO set up will melt end caps
so if you run any VHO and you want to run it to proper levels you have to use 3 out of the 4 wires for one bulb. Now you can use two wires and run it at HO levels, this is basically how IceCap works. you can either overdrive NO or under drive VHO using two wires per bulb.
Steve
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