lightening agent, the item without fluorescent whitening agent shows purple light and the object containing fluorescent whitening agent shows blue light. It can be irradiated by invisible stain markings, carpet stains and pet urine, dermatitis in cats and dogs, identification of counterfeit banknotes, driving licences, ID cards or passports, etc.3 in 1 and 7 modes: Bblack light LED torch has white light and UV light (black light), COB white/red light; 7 modes are: white high brightness, white low light, white light SOS, UV light, COB white bright light, COB red light, COB white light and red light alternating strobe. In any mode, hold the switch for 1-3 seconds to turn off the UV torch small.Strong magnetic adsorption and COB red/white light: the tail of the magnetic tactical torch LED has strong magnetism and can be adsorbed on any steel rod; COB work light has white and red light mode, alternating red and white strobe mode, plus extremely bright COB wick. It is easier to use as a warning light when working, waiting and driving.Large capacity rechargeable battery + micro USB charging: LED torch rechargeable, equipped with a 2200 mAh large capacity 18650 rechargeable battery, UV torch extremely bright LED is more durable in outdoor camping lighting; mini flashlights can be convenient on PCs, laptops, walls USB socket, car charger, mobile phone USB charging plug for charging. Charging shows red light, fully charged green light.Wide range of applications: our LED torches are made of aviation aluminium, IPX6 waterproof torch can resist storm and snow, light weight, our small torch is the same size as the palm, with pocket clip, easy to carry, easy to use for children and adults, very suitable for mountaineering, hunting, running, dog walking, emergency, military, hurricane, emergency and general home lighting and maintenance use.