You may murmur with regrets: if I could look a little clearer, or you complained that it cost too much power while using Phone flashlight. Do not make yourself seized with remorse if emergency happens.Precautions avert perils. So why not take a UC01? This mini light is really suitable for carry-on wearing. The built-in Li-polymer battery boots the wanting output for hiking, reading and so on. This Light also features thoughtful design of battery level indicator and convenient Micro-USB charging, the applications could be more flexible.