I've heard this before,but i forgot. Can i use a SE 400watts bulb on a 250w ballast or is it the other way around?
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MH bulb question
I've heard this before,but i forgot. Can i use a SE 400watts bulb on a 250w ballast or is it the other way around?
Reefing is just like cooking, all the ingredients have to be just right , except you don't have to bring the water to a BOIL...
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