This Ultraviolet torch (UV Flashlight or UV lamp) is light and easy to use for a range of activities in and out of the science lab. It emits 395nm wavelength with 12 top quality ultraviolet led lights and each LED lasts up to 12 years. Simple on/off push button.Product description:Material: Aluminium alloyPower source: battery poweredBattery capacity: 1.5V AAA battery (not included)Power: 3WLight source form: bulb ledWavelength: 395nm (12LED)