... white:1600-1800mcd/led Light source: 3528 SMD RGB LED quantiTy: 30LEDS/60LEDSCertificate:CE,RohsIP rating: ... for LED stripCan be available in various single color& RGB color3LEDs per group,can be cut directed by ... to operate and learn;3, Test the optical,color,electrical parameters of high-power LED, and ... the setting of forward voltage,luminous flux,wavelength,color temperature and X,Y coordinates;5, Ir ...