View Full Version : MH XM bulb

07/18/2006, 02:05 PM
I want to use the XM MH 400w bulb. Do i need an electronic ballast?
I can use a magnetic ballast?

07/18/2006, 02:07 PM
Yep, probe start magnetic (m59) ballasts are the recommended ones to use.

07/18/2006, 02:14 PM
you do not and from what i have read,magnetic works as well or better in some cases.

07/19/2006, 08:12 AM
sanjay joshi has tested ballasts and bulb combinations.search for his lighting pages and you will get info that has been proven.there is spectral plots and specs on many bulb and ballast combos.if you cant find his info let me know and i will get you the address