Quote Originally Posted by Sentinel
I received a package from insidesun.com and hooked up an mh conversion bulb to a 400 watt hps and it started sparking and rancid smoke started pouring out the vents. What is the problem?
I don't get it...

'Conversion' bulb? What's that?

You hooked-up a MH to a 400W HPS?

WHAT????

What did you do exactly? Did you hook-up a MH or a HPS?

What's the bulb? MH? or HPS?
What's the ballast? MH? or HPS?

I'm intrigued with this 'conversion bulb'... maybe you can do that... but my ballast has like 443 warnings that I shouldn't connect a MH bulb to the HPS side, and the other way around...