Hi, i am using this lamp on the photo and a new 400w SON-T HPS bulb that i got from my friend but it's not making as much light as my friends 400W lamp, I noticed that my friends bulb is compleatly yellow when it is on and they have been in use for about 4 months but my bulb is only half yellow compared to my friends bulb. Is this because my ballast is metal-halide and my friends ballast is HPS? Isn't there a way to change my ballast to a HPS ballast with some different wiring or something? wtf is the difference between a metal-halide and a HPS? i thought all 400w ballast were the same? Do i need to buy a better ignitor?
????: Drugs Forum http://www.drugs-forum.com/forum/showthread.php?t=76924
????: Drugs Forum http://www.drugs-forum.com/forum/showthread.php?t=76924