E-light combines 3 advanced technologiesBipolar RFIPLSkin contact coolingFirst the IPL (intense pulse light ) energy at a specific wavelength of between 430nm and 1200nm is used to pre heat the targeted area, which creates a thermal path for the RF (Radio Frequency) to travel, then the Electro Magnetic energy (RF) us delivered directly to the hair follicle or targeted vascular or pigmented legion.E-light does not rely on melanin in the hair so good results can be achieved on grey or blonde hair (unlike ipl) In clinical tests E-light as been shown to be 3 times more efficient than ipl at these procedures.