1, high brightness, color uniformity, indoor and outdoor advertising display. 2, long life: LED life of up to 100,000 hours (ten years) or more, 3, viewing angle: indoor viewing angle greater than 160 degrees, outdoor viewing angle can be greater than 120 degrees. The size of angle depends on the shape LED light emitting diode. 4, easy computer interface, support software rich. 5. Energy .LED light curtain uses direct heat and direct power supply cooling module, 6. show good results