This handy little light can be clipped to any surface for light inside or outside your tent or can be r used as pocket flashlight. Choose between high and low light levels. Up to 24 hours run time on low light level. Operates with 3AAA (included).Warnings: Do not use the device in temperatures higher than 140 degrees F (60 C) or lower than -4 degrees F (-18C). Dispose of batteries properly. Do not dispose of batteries or unit in fire. Do not mix old and new batteries. Do not mix alkaline, carbon-zinc and Ni-Cad batteries. Do not expose LED light directly into eyes. Make sure power is turned off when not in use. Remove batteries from the unit during long term storage.