Marklar..is this your reflector or close?

[Piston]

http://www.lithonia.com/library/specsheets/Indoor_HID/TE-M3.PDF

ps sorry for posting a new thread...meant to reply.

 

[eebasist]

nope, his reflector isnt HID related at all. Its actually a fixture for an incandesenct (although you could put a small MH in) ellipsoidal downlight. He retrofitted the reflector to fit his 400W MH into it. It was never designed for a 400W bulb.