kool maaaaan! blue haze. marijuana can only process so much light a day 18hrs to stay vegging is all thts needed. others disagree n say plants grow faster 24 a day. I'd go 18hrs plus ull save lamp life. the guru J.C. says there's really no notable difference. you need to fix ur temperature problem. marijuana can only withsatnd 95degrees for a short while untill it starts to hav irregular nutrient uptake and slow growth.also you'll end up with between 35%-60% less product than if you'd kept right temperatures 70-80 degrees in the day and no lesser than 55 at nite. plus when buds are grown hot they don't compact and close like prefered. nstead they stay fluffy n thc levels r also diminished,and it produces way way more odor. blue haze wow! I'm sorta new to the whole internet thing hadn't had this phone tht long. good luck maaaaan!