Topical Treatment A mini version of Honpal Heat Therapy with a treatment area of 7cm 10%, designed to treat small scattered areas and protect healthy skin from deterioration. Safe and DurableUsing 3111nm precise UV wavelength and high quality LED lamp, high stability and long service life. Fast and EfficientHigh intensity UV light source for visible treatment effect and electronic data timer to control treatment time for high safety. Compact and PortableMini version home UV therapy device, more portable than the old version, easy to put in your pocket and take it with you when you travel. [Easy Operation] Please read the manual carefully before use, test properly, and always wear safety glasses. Ultraviolet light therapy has its origins in the 1920s. With advances in science and technology , the technology of artificial light sources has also developed rapidly. Of these, UVA and UVB therapies have become very popular and effective options. Specification Power: 2W Type-C Input: DC 5V 2A Battery Capacity: 450MA UVA LED Parameters 320-400NM (peak 3683 NM) UVB 280-320NM (peak 3111NM) Working distance: 3CM0.5CM Irradiated area: 7 c 10% Product size: 13.5 x 3 x 1.5CM Product weight: 31.3g Material: ABS material Use: handheld Warning This UVB LED lamp emits ultraviolet rays, please do not stare at it! &nbsp ;Wear anti-UV goggles. Clean the irradiated area and remove make-up before application. It is necessary to expose the area to be irradiated and to cover the normal skin with a white cloth or other method. Wear If necessary, apply an oily ointment to the skin of the irradiated area.