grow led

I was also thinking that maybe I shiuld try wish but its a little risky.....

http://www.lumileds.com/uploads/600/DS162-pdf Hello. What do you think about these COBs? Efficiency seems good and they cost 1/3 of vero29 and less than 1/4 of cxb3590. I don't know the spectral data of the light and do not know how they work in grow practice, They are produced by Philips ...