switching characteristics

 3, switching characteristics

LED Downlight

LED switching characteristics is the instantaneous power and power LED light, electricity, color change characteristics. Through the LED switching characteristics of the test can be obtained through the power LED at the moment working conditions, the variation of material properties, etc., which can not only learn through the loss of power to the LED can also be used to guide the design of LED driver modules. LED Strip

    4, color characteristics

LED color features include chromaticity coordinates, dominant wavelength, color purity, color temperature and color, etc., LED's color characteristics of the white LED is particularly important. The color characteristics of existing test methods are spectrophotometry and integration. Figure 7: spectrophotometric method is measured through the monochromator LED spectral power distribution, then the use of a weighting function integral obtain the corresponding chrominance color parameters; integration method is the use of a specific filter with photodetector measured directly color parameters; spectrophotometric accuracy to be much higher than the integral method. GU10