UVA is useless to plants, if you want to supplement your normal lighting with UV light use a UVB bulb, it causes the plant to produce more THC. http://www.hempfood.com/IHA/iha01201.html
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UVA is useless to plants, if you want to supplement your normal lighting with UV light use a UVB bulb, it causes the plant to produce more THC. http://www.hempfood.com/IHA/iha01201.html
oh shit damn that means i gotta take this back
fuckit, well i tried leavin it on for a few hours and change tha bulb this didnt work after i change the bulb tha leaves started dieing on me with in a hour. so ima juss get sum more killa and use another seed. this sux