wallysue
Bronze Member
Poorboy, I think if you look on the label on the ballast transformers it should say what lamps to use.
Doesn't cold starting and operation shorten the lamp life? I used to work where there were HO florescents in a unheated warehouse, they never seemed to last long and got changed out to metal halides. Coldest was probably -20 F. The lamps were 8ft power grooves or some thing like that. In winter we used to turn 'em on and come back later or bring a flashlight, the halides made that a year round deal.
Doesn't cold starting and operation shorten the lamp life? I used to work where there were HO florescents in a unheated warehouse, they never seemed to last long and got changed out to metal halides. Coldest was probably -20 F. The lamps were 8ft power grooves or some thing like that. In winter we used to turn 'em on and come back later or bring a flashlight, the halides made that a year round deal.