... , High Efficiency: over 85% d, 2 year 50W 2800lm led ceiling panel light 1. Advantage: a, Super Thin: 13mm thickness b, High ... Power Factor, the PF is over 0.9c, Contant Current Driver ... room, art exbition, museum, office, readig room, corridor, toilet, e, Light of Jewelry and fashion 3. Feature: Item No.IP GradeInput ...