【Rich Use Scenarios】Emergency lighting, outdoor camping, power failures, major natural disaster, indoor lighting, reading at night. | 【Plug and Play】: Plug and play, no further action required. | 【Long Service Life】: Each usb lamp is composed of 8 led lamp beads with a service life of about 10,000 hours, and each lamp bead is independent of each other. Even if individual lamp beads are damaged, other lamp beads can still work normally. | 【Small and Portable】：LED light are small and portable(3.94 inches * 0.71 inches * 0.35 inches), you can put it in your pocket or hang it on the keychain. | 【8 in 1】: There are 8 LED lights in the metal box, which is convenient for you to use and store in different scenarios.