... 80 test---http://www.runlite.cn/userfiles/lz3jooca9pz801310104525.pdf,approved.light source---SMD3528:High brightness: epistar chip, we take 70 ... to the CIE1931 chromaticity, Color drift less then 200k PackageApplication:Office, living room, school, supermarket, hospital, meeting room, factory, ... of charge on problems within quality. 4feet 20w t10 led tube(TUV CE, RoHS ,IESNA LM-80 approved)