The Fenix UC01 is a mini rechargeable light with micro USB port making it an ideal keychain light. Clip the UC01 on your clothing, gear, or anywhere you need quick access to. It contains a high-performance LED which delivers max 45 lumens and max duration of 50 hours at Low output. The three simple output levels are all controlled by the one stainless steel side switch. With the addition of IPX-6 waterproof ability, the Fenix UC01 is completely competent for daily use, outdoor hiking.