Quote:
Originally Posted by ocitown
That 1000bulbs.com has VERY cheap HID MH bulbs from Sylvania and hortilux(110,000 lumens)
but it seems they are at the 3700-4000K temps.
There only like $30-$35,is this color ok since they are MH or is it required they be 5000-6000K? 
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most mh bulbs should be 6500-5000k. they dont have to be 6500-5000k, but the more blue the lusher your foliage will be, & greener too. blue light stimulates foliage growth, & will have a fuller compact plant.