... 4 in 1 Ultrasound cavitation Yag Laser RF E light Product Description1. It is a new generation ... go with this equipment.The 4 working systems:a. E-light (IPL&RF) hair removal, freckles removal, ... kinds of skin problems. 4 working systems (1) E light (ipl &rf) for hair removal, freckle removal ... Elight/IPL energy0-50J/CM2Pulse Wdith0.1-99.9msPulse Space Time1-99msPulse Number1-15Pulse Interval1s, 2s, 3s, ...