Amount of wattage?

[Wilty]

Bulbs are made of glass right?
I was clearly working the under the assumption that any 250w ballast would run any 250w MH. I think that maybe I'll use the ballast I got from the back (ballasts run the lights in a welding shop) and trial and error to see if I can get bulbs to run on it. Returning the bulbs if they don't light up. I'm going to get the specs on the ballast I have, spoken with the manufacturer and I'll be able to compare against others.

Yet again, I thought a bulb was a bulb and the only difference was the K rating. oooo head hurting so much. oK, I need to do more research and this is a really hard topic to research, manufacturers all swear their's are best lol I know what I'm doing this weekend hahah