i have read that the HQI is actually just a DE bulb. the HQI is the ballast type that runs it.
the Mogul bulbs do get air in the bulb when its made. the DE doesnt get any air due to it being vacum sealed the SE are not....
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180 starfire front, LPS, millipora
Doesn't matter how much you have been reading until you take the plunge.
You don't know as much as you think.
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