air cooled lights or hoods with no glass??? which is better???????

although 25% seems high it's up there. I'd rather have none if possible as it also filters out some of the UV light to.

no, it's not true that glass reduces light by 25%. glass reduces light by 1/2% for each 10mm of thickness. So the reduction in light thru glass in a hood is pretty much negligable. But if your grow room is fine without glass, fine. If you have to use a glass lens, you are still fine. It is pretty much a moot point.

Kerovan said:

no, it's not true that glass reduces light by 25%. glass reduces light by 1/2% for each 10mm of thickness. So the reduction in light thru glass in a hood is pretty much negligable. But if your grow room is fine without glass, fine. If you have to use a glass lens, you are still fine. It is pretty much a moot point.

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yea jus curious thanx

frmrboi said:

although 25% seems high it's up there. I'd rather have none if possible as it also filters out some of the UV light to.

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yea i jus kno u have to have a good ac to keep ur room cool beacause thos light put off a lot of heat

how many BTU minisplit? I'd say 18,000-20,000btu is where you want to be.

I run hoods with no ducting and a mini split and I'm fine.

Shrubs First said:

how many BTU minisplit? I'd say 18,000-20,000btu is where you want to be.

I run hoods with no ducting and a mini split and I'm fine.

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yea i got a 24000btu seems to be keepin up im jus trippin tho when summer comes i dunno if that ac will keep up i dont wana burn it up