‎3.94 x 0.71 x 0.35 inches

【Use Occasions】 Outdoor camping, Indoor lighting, Reading at night, Emergency lighting. 【Plug and Play】: Plug and play, no further action required. 【Long Service Life】: Each usb light is composed of 8 led beads with a service life of about 10,000 hours, and each bead is independent of each other. Even if individual beads are damaged, other beads can still work normally.