Description The Nitecore TUBE v2 LED Key Chain Flashlight (Black) is dust- and water-resistant, 1-55-lumen key chain LED flashlight. It has a single multi-stage switch that allows you to choose either a low or high output, as well as an infinitely variable output in-between when using the brightness feature. A built-in Li-ion battery charges via a micro-USB port and can provide up to 58 hours of runtime on low output or 1.3 hours on high. The light is impact resistant up to 3.3' and IP65 water-resistant. At 2.2 x 0.8 x 0.3" and just 0.3 ounces, it's about the size of a car key fob except much lighter—you'll never want to be without it on your key ring. What's in the box: • TUBE V2.0 • Key Ring Key Features: Low: 1 lumen. High: 55 lumens. 100° beam angle. One-year standby power. Over-discharge protection. Overcharge protection. Short-circuit protection. Integrated blue power indicator. Specifications Illumination Source 1 x LED White Light Output Low: 1 Lumens High: 55 Lumens Battery Type 1 x Built-In Lithium-Ion Estimated Runtime Low: 58 Hours High: 1.3 Hours Internal Battery Capacity 125 mAh Charging Time 1.5 Hours Material of Construction Polycarbonate IP Rating IP65 Impact Resistance Yes, 3.3' / 1 m Dimensions H: 0.3 x W: 0.8 x L: 2.2" / H: 0.8 x W: 2.0 x L: 5.6 cm Weight 0.34 oz / 9.6 g (With Battery)