(1) high brightness: the output of a single led array is about 1w~20w, hundreds of times more than that of the conventional single
LED, 5 to 15 mw. It has a very far target range.
(2) high efficiency: the lightning conversion efficiency of ordinary infrared LEDs is about 10%, and the LED array is as high as 25%.
(3) small volume: LED array is highly integrated chip, smaller than the ordinary one.
(4) long lifetime: the life of LED array is 50,000 hours (effective life is 10,000 hours), 9 times longer than the common LED (effective
life is 1,200 hours).
(5) homogeneous light: LED array can produce (180°shape) shiny surface. It can solve '' the flashlight effect'' of the common LEDs.