Features: 5 Mode UV blacklight flashlight Long service life up to 10,000 hours Aluminium body, light weight Adjustable focus range for different usage, stretching to adjust its focus. Great for checking notes, credit cards, fluorescent inks (invisible inks), cracked glassware, or even crime scene Uses: money detector, night fishing, according to drift, according to the prayer beads, according to traces of forensic class of special purpose industries use.