ultraviolet light, for the control of fluorescent banknotes, stamps, cheque and credit cards, ID-cards, for the testing of materials, identification etc., splash water proof wavelength: 410 nm small, lightweight and reliable • with new LED technology • high brightness • excellent visibility • extremely economical battery consumption • LED bulb life: ca. 100.000 hours • with key ring, ideal as key fobs • made of aluminium • batteries included 42 x ø 19 mm, 44 g