Cree Cxb3590 3500k 80cri Cd Bin Cobs Mounted On 140mm Heatsinks, Led Grow Light

CREE CXB3590 3500k 80CRI CD bin COB, LED Grow Lights, 140mm Heatsinks -Perfect light engines for DIY grow light builders. -36Vdc Input, 2400mA Max Current. -efficiency of ~2.5umol @ ~25W -COBs properly mounted with Arctic Silver T.I.M. -140mm black heatsinks from Robin at Northern Grow Lights, back before he joined Horticulture Lighting Group, h eatsinks show some fading of the anodizing on the light exposed areas. (pictured) -Includes Ledil ANGELINA Extra Wide Reflectors. -Includes mounting hardware. (pictured) -Purchased new in 2015. -Used regularly on 11hr daily on schedule for ~6yrs. -Excellent working condition. -They were always "ran soft" @ ~35W -Lab report available on Chilled Tech website. -See Growmau5 (of youtube) to learn more about DIY LED grow lights. -Excellent flowering or vegetative spectrum. **These light engines require knowledge of wiring and driver selection, for DIY enthusiasts.** Price is for one light engine. Eight available while supplies last. Offers considered on multiple units. Payment is preferred at time of purchase. No warranty, sold as is. Free shipping is by carrier of my choice. I typically ship the day after receiving payment excluding Saturday, Sunday, and holidays. I close my Ebay listings for purchase from Friday PM to Saturday PM every week.