Feature: 1. Aluminum Alloy Material: Constructed with sturdy aluminum alloy, this identification flashlight is both durable and lightweight, making it easy to carry. 2. Multi Function Design: Equipped with three light sources (white light, warm light, and UV) to suit various needs and occasions. 3. UV Identification: With a wavelength of 365nm, the UV light is specifically designed for quick and professional identification and examination of jewelry. 4. Built In Battery: It comes with a high capacity 3000mAh lithium battery, ensuring prolonged usage. Provide you with the convenience of use. 5. Convenient Operation: Controlled with a tail switch, it allows for easy and fast switching between light sources and brightness adjustments. Ideal for business, academic research, antiquing, collecting miniatures, or for portable use. Specification: Item Type: Gemstone Identification Lights Material: Aluminum alloy Size: Approx. 146 x 25mm/5.75 x 0.98in Built in Battery: 18650 Lithium Battery 3000mAh (included) Light Source: White Light Yellow Light UV UV Light Wavelength: 365nm Control: Tail button Charging Method: USB Type C Weight: Approx. 147.00g / 5.19oz. Package List: 1 x Flashlight 1 x USB Cable