Upgraded Red Light Therapy LampThe device use combo red 660nm and Infrared 850nm leds which is chosen to give the ideal light intensity for biological effects anywhere on the body . The light can be used on any area of the bodyAnything in the first couple of inches of skin can be affected by this light, making it suitable for hair health, general skin tone/beauty, acne, eczema, wounds, bruises, sunburn, joint pain, wrinkle prevention, and much more. Easy and durable to use: Designed to fit standard E26/E27 socket, 100~240V AC, Easy to set up and use. Enjoy light therapy at home, whenever you want to. The high power led light therapy bulb has built-in qualified heat sink for better heat dissipation, durable to use. Optical Lens Design: The red light bulb is equipped with 90 degree glass lens and additional super large optical lens which improve the Irradiance > 141mW/cm2. Target treatment for your face shoulder knee waist 20 minutes every time.