Never Needs BatteriesCharge by Built-in Dynamo or Solar PanelWaterproof to 45 feetThe perfect emergency flashlight with high power LEDs, built-in dynamo generator and solar panel and totally water proof design. Designed for continued use in storms, floods and other disasters. Also perfect for camping, boating, ?hunting and backpacking.Features:Three high power LEDsDynamo charger ? never needs batteriesBuilt-in solar panel3 functions ? one LED, three LEDs, three LEDs flashingWaterproof to 45 feet!Specs:Flashlight power ? 8 LumensLighting time ? with full charge - 4 hours with 3 LEDs, 8 hours with 1 LEDCharging time ? 1 minute cranking = 80 minutes lighting ? 1 LEDCharging time ? 1 hour in direct sunlight = 120 minutes lighting ? 1 LEDLife on LEDs ? 50000 hoursBattery capacity ? 80 mAh, Ni-MH battery6? x 2.5? x 1.75?