http://www.yumi-ledlighting.com/led-uv-light/ LED UV Light factory Power3W Band visible wavelength 253.7 nm Lamp material: Quartz UV lamp MaterialABS environmental protection material VoltageDC5V Battery4*AAA(Without battery锛?/p> Radiation intensity锛?500uw/cm2 Product size12.5*3.4*2.5 cm Portable UVC Light sterilizer helps to eliminate bacteria, viruses, fungus, molds, etc on the surfaces of most household and personal items. Remove odors, bacteria, and dust motes which cause splenitis, pneumonia, asthma, and allergies. Unlike chemical approaches to disinfection, UV light provides rapid, effective inactivation of microorganisms through a physical process. When bacteria, viruses, and protozoa are exposed to the germicidal wavelengths of UV light, they are rendered incapable of reproducing and infecting. Suitable for households, travel and business. Its portability makes it easy to bring anywhere and use anytime. 1. Portable clamshell design 2. Simple operation, ON/OFF button. 3. Added gravity protection function, when the device turns upward, it will automatically turn off the UV-C lamp. 4. Powered by 4x 1.5V AAA batteries. Safe and energy-saving. 5. Foldable designed &Various uses: Suitable for home, office, business trip, travel used. 253.7nm wavelength UVC light kills more than 99% bacteria, mold, fungus and virus, keep your life clean. Make the UV lamp towards the sterilization items, keep the vertical distance at 1cm-5cm, move slowly back and forth for 30 seconds. The longer the time, the better the sterilization effect. LED UV Light factory website:http://www.yumi-ledlighting.com/led-uv-light/