led panel with ies file IP40 AC100~240V,DC30~40V,Ra>80 PF>0.9, ... 75~80lm/w,3 years warranty led panel with ies file 1. High Luminous efficiency of up to 75~80LM / W ... and wide light emitting;10. Special circuit design, avoiding the single broken LED influence problem;11. Instant start, no flickering, no ...