Item Type: UV Flashlight Length: Approx. 130mm / 5.12in Head Diameter: Approx. 30mm / 1.18in Tail Diameter: Approx. 22mm / 0.87in Power Supply Battery: 1 x 18650 lithium battery, not included. Wavelength: 365nm Power: 5W Light Source: Purple Light Application: For the inspection of scorpion, pet urine, etc., can also be used for resin curing. Weight: 100 g / 3.53 oz(approx.) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }