The ballast is in two parts, the ballast and an ignitor for use with HPS bulbs. I have problems with both parts. The ballast has got five terminals. My guess is that the leftmost two is for mains, but i don't know which ones are for the lamp. The ignitor is a clip-on type and has got four terminals, and the print on it says where to put the mains and the lamp. However, the terminals of the ignitor are not the screw-type, and i can't figure out how to get the cables fastened into them. On each terminal there is a small plastic plug which you can take off. However doing that doesn't seem to help in any way.
I would greatly appriciate any help!