FDA CLEARED - This LED Red Light Therapy device is cleared for use by the FDA Combo Deep Red 660 and Near Infrared 850nm ,deep red can be absorbed more effectively by skin ,repair skin problem.Infrared light 850nm penetrates deeper into skin ,increase light pentration through skin to pain points ,more effectively relieving pain and provide essential energy for cellualr renewal nutrition and removal of waste material,red light therapy benefit for for repair skin ,pain relief,weight loss etc 2W Red and Infrared 42mil led chip original epileds high efficient .the light efficiency is much than the traditional small light therapy lamp. 30 Degree glass lens improve the Irradiance > 100mW/cm2.Target treatment for your face shoulder knee waist 20 minutes every time .