Yep, it is a MH ballast with a HPS igniter on it, but your MH bulb will lose some hours working with the igniter. Also, that link I posted on how to wire your ballast has instructions on a double room relay I believe. These things can get pretty hot, I am about to put a pan under the 400w because I have it going 24-7 right now and the thing is extremely hot to the touch.
Brook if you stop in here, miss you.
Adieu
BlueBear Reviewed by BlueBear on . the complex questions of a perplexed noob well, lets see.... i gess i should start off by saying "hi":dance: to n e 1 who drops by this thread. i beleive this will end up being quite a brute; i have a tendency to come up with the strangest ideas/questions at the most unusual time and places.:p i shall relate to everything stated as present tense, like i'm actually doing things instead of just thinking them...;) more about me later.:o ok, i saw at lowe's a 400w hps bulb. i walked around to the fixture isle, but alas! no Rating: 5