LumaDoc FSA-HSA Handheld Red Light Therapy designed for Body, Blue & NIR Infrared

Irradiance (1 inch) > 120 mW / cm² Irradiance (3 inch) > 30.1 mW / cm² Illuminance 180 lux at 6 inches Wavelength 460:630:660:850:940nm LED Count 5 Light Spectrum Red, Near Infrared, Blue Net Weight 0.3 lbs (0.15 kg) Lifespan 50,000 hours Battery Built-in Charging Built-in USB-C port. How frequently should I use the LumaDoc RLT torch to see results? Use the red light therapy torch for up to 3 treatment sessions, each session lasting up to 3 minutes per day, depending on how much treatment is desired. More details are provided in the included Quick Start Guide. Can I use clothes while targeting an area of my body? For the light therapy to work effectively, it's to use it directly with no clothing on the target area. How long do the LEDs within the torch last for? The LEDs within the red light therapy torch are rated for 50,000 hours of usage so there is no need to worry about early burnout. Why don't all the LEDs emit light? LEDs emitting near infrared light or infrared light are invisible to the naked eye. What's Included.