How To Use Progressive Web App aka PWA On 420 Magazine Forum
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I never used them for cannabis. They will work for you fine. However, HO or VHO T5's or CFL's are better. They work much better than T12 because the light intensity is much greater with T5's or CFL's.
I just bought some 4' T12's 40 watt 6500k 3100 lumens. Anyone use these and if so how did they work for you.