50W 2800lm led ceiling panel light a, Super Thin: ... Efficiency: over 85% d, 2 year 50W 2800lm led ceiling panel light 1. Advantage: a, Super Thin: ... 2) Application: a, Industrial lighting b, Construction illumination c, Indoor decoration illumination of store, shop, window, hotel, dining room ... , d, Local illumination of show room, art exbition, museum, office, readig ...