... led ceiling panel light a, Super Thin: 13mm thickness b, High PF: over 0.9 c, 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 ... art exbition, museum, office, readig room, corridor, toilet, e, Light of Jewelry and fashion 3. Feature: Item No.IP GradeInput ...