Boy is my face red now! Just forget about my first post, it's not a rewiring issue. All I had to do was screw the bulb in properly, I guess I was a bit too gentle. But who can blame me, I didn't want to break the bulb.
StoneyDude Reviewed by StoneyDude on . Rewire Ballast for MH Hello! I recently bought a 250w HPS/MH ballast, one 250w HPS and one 250w MH (Philips Master HPI-T Plus). The HPS worked fine out of the box, the problem is that the MH won't work and if I understand it right I have to rewire the ballast for MH. Running MH in it's current wiring I get some flickering and buzzing but even after 20 minutes, that's all it won't fully ignite. I have enclosed two pictures of the ballast so you can see the wiring and also the two schematics I mentioned. In the Rating: 5