Super mini night lamp, camping light (combined use with mobile power bank); 0.2W small power, 2835 LED, nice cooling; Lighting for 100 hours with 5000mAh power bank; Easily taken into pocket, keychain; USB standard interface, suitable for mobile power bank, laptop PC, netbook, desktop PC etc; Because of small power consumption, not suitable for many will self-stop after full charged, will be defined no load and automatically turned off