White LED has attracted considerable interest in recent years because of further improvement of “green lighting source” and micro solid state lighting source.It can be used for aerospace lighting

emergency and signal lighting

hazardous lighting

electronic signs

general industrial lighting.This paper considered the development of white LED for lighting source and compared our sample with foreign products.For the products of Nichia Corporation

the luminescent intensity is 5.5cd;the color coordinate is

x

=0.31

y

=0.32;the color index is 85.For the products of Opto Technology Inc.

the luminescent intensity is 0.5 cd;the color coordinate is

x

=0.26

y

=0.25;the color index is 48.For our sample

luminescent intensity is 1.4 cd;the color coordinate is

x

=0.30

y

=0.28;the color index is 89.