Tube 2.0 is here! Built on the foundations of the popular Tube, the 2.0 version brings you an even brighter, longer-lasting tiny flashlight! Ideal for your keyring, bugout bag and EDC. The Tube 2.0 makes the perfect gift and is available in six different colours! The Nitecore Tube V2.0 is the next generation of the iconic keyring light, featuring a maximum output of 55 lumens from the high performance LED. The torch is powered by a built-in Li-ion battery and is rechargeable via a micro USB port on the side of the light. With an integrated USB charging and intelligent protection circuit, the rechargeable light offers over-discharge, overcharge and short circuit protection. The Tube V2.0 has an integrated power indicator which illuminates during charging and goes off when charging is complete. As with its predecessor, the Tube V2.0 has two brightness levels plus an infinitely variable brightness setting that allows for an output anywhere between the lowest level of 1 lumen and the highest of 55 lumens. Simply single press the side switch then press and hold to adjust the brightness, releasing the switch when the desired level has been reached. USB Rechargeable Brightness Levels: High: 55 lumens - 1 hr 15 mins runtime Low: 1 lumen - 58 hrs runtime Maximum beam distance 25 meters, waterproof to IP65 and resistant to impacts up to 1 meter. Includes: built-in Li-ion battery, split ring, keyring attachment. Please note, a micro USB charging cable is not included.