Just got a replacement ballast for a T8 light that stopped working, it's actually odd, because when I touch the ballast hot to the power I get a small spark, so something is drawing power, but not enough to fire the bulbs. Unfortunately Home Depot does not carry the exact replacement but found one that is compatible or so I think. It's for T8-32w which is what I have. Only thing, this one only has 3 wires coming out, the red one is suppose to go to one end and connect to both bulbs, on both pins, then there are two separate blue wires that goes to the other end of the bulb, and one blue for each bulb, connecting both pins of the bulb. But I don't quite get how that works, how is the filament going to fire up if it's connected that way? The existing ballast has 7 wires. Each bulb gets 2 wires per end and there is just one that shares two pins of one end of the bulb. Makes more sense to me.