YAH JUANG ENTERPRISE LTD launch several appearance patent LED COB products at 2012 Hong Kong international lightingfair (autumn edition), continuation of the high demands of the LED light source, the installed COB LED light source passed the LM80 test, by maintain the temperature of LED PCB within 75 degrees, continuously light-up over 5000hrs,the measurement of light decayis less than 2.5%. Coordinate with a highpower-factor (PF> 0.9) driver, and a unique design of cooling heatsink. This time, theirmain purpose of product design, is to...