Cree cob leds

[Blazed227]

Ok so I was looking on eBay at some cobs.. was thinking of replacing the hps lights.. esp for summer since it's in a shed an heat/cold is always a problem.. but most of the cobs looked like cheap junk then I came across these that are Cree chips an they say there 400watts... says it's 2 200 watt chips.. I know it's prolly closer to 200 watts draw but there 150 bucks a pop.. I'm thinking about 5 or 6 of these may not be a bad investment? Also if anyone has found any that are pretty decent an not real expensive post it up.. I would love to get a bud master they are freakin pretty sweet I think.. Anyway here's the eBay link to the light. Lol what you guys think.. an how many to replace each 600 watt hps

http://m.ebay.com/itm/400W-CREE-chip-COB-lens-full-spectrum-led-grow-light-for-greenhouse-hydroponic-/122465225951?hash=item1c837f0cdf%3Ag%3A4ToAAOSwBOtZAHZe&_trkparms=pageci%253A5697d3dd-2e63-11e7-922d-74dbd18079bb%257Cparentrq%253Ac3d2340a15b0ab136dd6021dffff221a%257Ciid%253A6

[9fingerleafs]

Check out growmou5 on YouTube. He has diy for leds and full tutorials on how to build them

[iphalldownalot]

max wattage for one chip is 117w. hope the link works. never posted before

http://www.cree.com/led-components/products/xlamp-leds-integrated-arrays/xlamp-cxa3070

[gbauto]

The cxa has been surpassed by newer technology that is more efficient. Biggest advantage is getting more lumens/watt and less heat for a given lumen output so do some research.

[Jibblerjoe]

Can you elaborate

[gbauto]

Efficacy improvement is the biggest improvement with newer technology. Just scan manufacturers spec sheets and you"'ll see the difference. Lumens/wart

[PuravidaC]

Check out Timbergrowlights.com. They have some nice COB kits. A little pricy but good information on COB grow lights.