1.with relevant certificates, RoHS, CE, FCC ,etc 2. with the unique led source(SMD) 3. price advantage 4 OEM. 1. Ultra-high brightness, high color index, no ballasts and starter2. Compare to the traditional fluorescent lamp,life of this tube light is ten times more, almost maintenance-free, and there is no need to change the light regularly, ballast and starter3. Unique LED light source, circuit ...