... 0.9 c, High Efficiency: over 85% d, 2 year 50W 2800lm led ceiling panel light 1. ... Current Driver: High Effiency of over 85% d, Warranty: 2 yearse, High Lumens of 2800lm, 50W f ... , Profesional manufacturer of 5 years from 2007. 2) Application: a, Industrial lighting b, Construction illumination ... of store, shop, window, hotel, dining room, d, Local illumination of show room, art exbition, museum, ...