... cool white and warm white): Packing:Integrated sphere:Main products from Daylighting1. LED spotlight ( MR11, MR16, GU10, E27, E14, E12, E17, ... the high performance of the led lamps. 3. high PF for LED tube light, LED downlight, LED flood light, LED high bay light. (PF> ... would be tested before they are shipped out. The Everfine Integrating Sphere help us test the color temperature, power, CRI, etc. ...