Sentina Outback Safety LED Lamp with Crank Generator and USB Port. The Sentina LED-98 Outback Safety Lamp with built-in power bank and crank generator is an outdoor/patio light that"s emergency-ready 24 hours per-day. It automatically adjusts by its built-in motion sensor and photo sensor to provide light as needed, when needed most. Fully charged, it will provide up to ten hours of motion sensitive lighting. It will also support a cell phone for up to ten hours of talk time. The Outback also features a powerful built-in 5V NiMH rechargeable battery and charger, as well as a built-in crank generator. Size: 2.75"L x 2.25"W x 6"W.