... and color temperature(CCT) tester for LED CFL products, with patent, different size andrequirements can be cutomized In the fierce competition ... company found that ,the coating inside the integrating spheres with high diffuse reflection and stability isone of the most important ... factor,, Annual power consumption(calculated by 10hrs/day)3. Equiped with different converter for E27, E14, B15, B22, GU10, ...