The E-Light technology fully combines the advantages of optical energy and radio frequency. With the impedance difference in skin and pre-heat produced when the skin selectively absorbs optical energy, the targeted tissue absorbs radio frequency with lower optical energy. So, with a very low risk of side effects-pigment lesion, blistering-generally caused by higher optical energy, we are able to achieve good result with comfortable treatment. The traditional IPL device can only reach 2mm into the skin, however, the Diana E-light creates a deep penetration into the dermis about 15mm. So, with this technology of Diana, we can achieve more applications, especially on wrinkle treatments and skin tightening.