... Rejuvenation, Pigmentation, Vascular, Acne , Hair removal E light (IPL+RF) Working Principle:1. Release IPL and ... RF at the same time, For the light power is much less than that in IPL ... aged and damaged collagen layer.3. E-light is absorbed by acne target and release oxygen ... Pigmentation, Vascular, Acne , Hair removal.STechnical Parameters:S Spectrum: 560~1200nm (green button) 640~1200nm(yellow button) ...