Originally Posted by Dion
they rnt really that good value, better off going with 2 vero 29 and on an HLG 120 36A
for just a bit more money you have a light that is expandable way beyond what you need now but dimmable down to silly efficiency in the meanwhile
COBs are essentially the same LEDs that are used in strips except clumped up into a little space a few cm across. You have to then muck around with placement to get the light to spread out evenly, usually requiring a fair bit of vertical space, a luxury you don't have in a 17" PC case grow that Seshwan is attempting.
I have tried HPS, MH, fluros, CFL, and half a dozen different types of COBs in 3-4sq. ft. micro grows, and the strip LEDs beat them all.
I spent around $100 all up for 15 x 280m Bridgelux strips, a 180w 12v power supply, and a couple of eBay boost converters to get it up to 22.1v, and my light meter tells me it's the most even setup I have ever had.