... put in 80°Heater for 7days) . For Integrating Sphere and Illumination Test Equipment, to test the lumen, color temperature, watts ... and illumination of the raw material and finished goods. Features1. Color consistency high, low-power, low-light decline, long lifespan, ... sinking, ensuring safe working temperature and long life4, True color rendering with optional light colors5, Certificate:CE&RoHS&FCC& ...