Professional in producing led cob chip,manufacture supply cob led 

1. LED Holder drawing   

2. Driving Circuit

As high power LED lamp bead complies with the diode VI characteristic curve, if the floating current with the floating voltage could damage the led bead, that suggest customer using constant current power or IC, not using constant voltage power or IC. The LED lamp bead can’t be drove reversely;

3. Storage Conditation

A.  Before open the package, the LED lamp bead could be stored below 30°C/90%RH. After open the package, the LED lamp bead should be used in 30°C/70%RH;

B.  Should be used in 168hrs (7days) after open the package;

C.  LED lamp bead with lens should be used with dustproof measures;