LEB luminous diode series adopts automatic crystal position,welding wire machine and full automaticity light splitting colour analyzer, which has these specifications such as Φ3,Φ5,Φ8,Φ10. For the product are high reliable, long life, and pure color, especially the wihte light emitting diode which is high illumination,small light decaying,and nondiscolouring,etc., it is higher than the trade.