Size: Total length 192mm, head diameter 78mm, handle 35mm Weight: 300g without battery Light source: LED violet light Hull Material: Reinforced 6061 Aerospace-Grade Aluminum Surface Treatment: Hard-Bright Anodized Cruise Time: Lasts approximately 180 minutes Power supply: 3 AA batteries Product features: exquisite design, fine workmanship, widely used in banknote inspection, fluorescence detection, scorpion hunting, teaching, etc. How to use: unscrew the back cover, add 3 AA batteries into the battery compartment (pay attention to the positive and negative poles of the batteries), put the battery compartment into the barrel, screw the cover back and press the switch. Features: Small UV flashlight. Rear push switch with back rope, easy to carry. Uses: detect money finder, night fishing, drifting, rosary, forensic special industrial use. Specification: Material: Aluminum alloy Color Shell: Black Light Color: Purple Power: 6 AA batteries (not included) Number of LEDs: 100 LEDs Switch type: On/Off Size: 19.2 cm x 7.8 cm x 3.8 cm Weight: 318 grams The package includes: 1x UV LED torch 1 x tail rope battery not included