Topical Treatment A mini version of Honpal Heat Therapy with a treatment area of 7 cm 10 percent , designed to treat small, scattered areas and protect healthy skin from deterioration. Safe and DurableUsing accurate 3111nm UV wavelength and high quality LED lamp, high stability and long service life. Fast and EffectiveHigh-intensity output UV light source for visible treatment effect and electronic data timer to control treatment time for high safety. Compact and PortableMini version of home UV therapy device, more portable than the old version, easy to put in your pocket and take 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 the advancement of science and technology, the technology of artificial light sources has also developed rapidly. Among these, UVA and UVB therapy have become very popular and effective options. Specification Power: 2W Type-C input: DC 5V 2A Battery capacity: 450MA LED parameters UVA 320-400NM (peak 3683 NM) UVB 280-320NM (peak 3111NM) Working distance: 3CM0.5CM Irradiated area:7 c 10 percent Product size: 13.5x3x1.5 CM Product weight:31.3 G Material: ABS material Use: Handheld Caution This LED UVB lamp emits ultraviolet radiation, please do not stare into it Lamp Wear UV-protective glasses. Clean the irradiated area and remove makeup before application. It is necessary to expose the area to be irradiated and cover normal skin with a white cloth or other method. Wear If necessary, apply a greasy ointment to the skin of the irradiated area.