Whatever you use for exhaust size, use twice as much for intake. Doesn't matter what size you do for the holes, as long as they add up.
redtails Reviewed by redtails on . >PLEASE HELP<>CLICK ME< hey guys, right i have been growing for around 4 years now, but only outside growing so never used a lights before, im looking to grow just 1 plant a time to get me to summer then the sun dose it job every year, im only wanting to buy 1 bulb to do a allround job, could anyone give me reason not to buy this bulb and go for a different one?? link is Growing Light | Indoor Grow Lighting | Light Systems for Plant Growth its a 250watt if anyone knows of a bulb that is better than this i Rating: 5