【Improved Infrared Lamps】: Each therapy bulb has 18 high power LEDs in total. 9pcs 660nm deep red leds + 9pcs 850nm near infrared leds. Infrared therapy can improve blood circulation and circulation in the target area. 【Optical lens design】: Red light therapy is equipped with a 30 degree glass lens and an additional extra large optical lens which improves irradiance & gt; 153.7 mW / cm2. Infrared light can be focused to irradiate parts of the body to make the effect more obvious. 【Widely Used】: Infrared light therapy can be used on any area of the body. which makes it suitable for general skin tone / beauty, wounds, sunburn, joint pain, prevention of wrinkles and much more. red light therapy promote the recovery of damaged muscles and tissues. 【Easy to use and safety】: The infrared heat lamp meets the standard E26 / E27 socket, 100 ~ 240V AC, easy to install and use. The high power LED light therapy bulb has a built-in qualified heat sink for better heat dissipation and safety.