1、 Upgrade red light therapy lamp: each therapy bulb has 9 high-power lamp beads. 660nm deep red LED + 850nm near infrared LED, making it the best wavelength for phototherapy. Infrared light is invisible to the naked eye, so when using this bulb, only half of the chip will be illuminated.2、 Optical lens design: The red bulb is equipped with a 90-degree glass lens and a large optical lens, which can increase the irradiance> 141mW/c㎡. Designed to treat your face, shoulders, knees and waist for 20 minutes.3、 Non-drug and non-invasive: designed to provide infrared heat to the human body. Infrared rays can improve blood flow and circulation in the target area, thereby promoting the movement of heel muscles and damaged tissues.4、 Easy to use and durable: Designed to fit standard E26/E27 sockets, AC 85~265V, easy to install and use. Whenever you want to enjoy light therapy at home.5、 The high-power LED phototherapy bulb has a built-in qualified radiator to provide better heat dissipation and durability.