Development of 800 W LED Projection Lighting System for Landscape Lighting

In this paper, an 800 W high-power, full-color LED projection lighting system was designed and fabricated for landscape lighting applications. The system has 16×16 full color RBG LED arrays and four channel microprocessors to control the color of each pixel. To collimate the light of an 800 W high-power LED projection lighting system, 395×395 mm Fresnel lens was embedded in the system housing without condenser lens. In addition, the structure of the system was designed to provide heat dissipation and waterproof functions. The lighting system could project various images consisting of dots, lines, planes, characters, and pictures at a distance of 5 and 10 m. Total luminous flux, electric power consumption, and luminous efficacy were measured to be 20692 lm, 874.8 W, and 23.7 lm/W, respectively.