In this paper we report the optimization of the LED"s in the surface light emitting. Earlier, for the enhancement of the light feeling and evenness we increased the no of LED"s which results in the increase of cost. In case of LED the light distribution is weak at the corners and strong at the center which results in hot spot. A secondary optics lens was designed to distribute the light at the hot spot area, with the less number of LED"s we can improve the light feeling and evenness and reduces the cost.