This Built-in Power LED Flashlight has a built-in large solar panel to have full charge battery under the strong sunlight. It has 2 charging modes supplied by USB power at home or charges it directly through the sunlight. The emergency battery backup is built in rechargeable Li battery and the LED with long lifespan is to make the flashlight durable.
USB-input flexible to use on rainy days
USB-output for power bank energy
Built-in 4000 mAh Li-ion battery
Size: 225 * 52 mm
Shell material: Aluminum
Light distance: 20 to 50 mm