Plastic body and casing with 2-way switch and adjustable carrying strap. 6 Watt tube UV light & bright white LED light torch. UV wavelength 365 nm. Great for verifying hidden security features on IDs, passports, credit cards, most currencies, and checking minerals, blood Trails, pet urine trails, paper quality, locating altercations, stains, paper quality, scorpions. Powered by 3D batteries (Not Included).