First Gear Passenger 1W Dynamo Powered LED Lantern is powered by built in battery, Dynamo-crank, USB cable and DC cable (all included). Crank time is one minute equals 8 minutes runtime on high - one minute equals 19 minutes runtime on low. Charge time is four hours by USB or DC. Led lifespan is 6,000 hours. Operation mode: High -50 Lumens- 2 hour runtime fully charged / low-25 Lumens-6 hour runtime fully charged. Water resistant and weighs 167 grams without cables. Collapsed size is 3 1/4in x 1 3/4in and expands to 3 1/4in x 4 1/2in. Color is Electric Green.