USB RECHARGEABLE - Convenient to charge, the TIKI is powered by a USB rechargeable Li-ion battery, and provides up to 40 hours of runtime. 300 LUMEN MINI KEYCHAIN LIGHT - The TIKI weighs only 0.42 ounces, but packs in 300 lumens with a reach of 77 yards. Simply short press the button to cycle through the four brightness levels. IDEAL EDC LIGHT - Made from durable PC materials with a stainless steel alloy head, the TIKI boasts an IP66 rating, ensuring that this little guy can be used as a tool in any weather condition. UV & HIGH CRI LIGHT - Triple press to access the auxiliary and special modes: white light, UV light, and high CRI light. Use the UV light to detect counterfeit bills, fake IDs, and stains. The high CRI light is great for reading and camping.