Solar energy-The flashlight uses amorphous silicon solar panels, which can collect solar energy and bring out your scene. Amorphous silicon solar panels are environmentally friendly and economical. Manual power generation-Amorphous silicon solar panels also support manual power generation to provide light energy. Shake the handle at a constant speed of 120 revolutions per minute, and the output power is 0.4W. Manual shaking for one minute can support lighting for about 5-10 minutes. Rechargeable built-in battery & durable-3.6V/40mAh built-in battery can be reused at least 800 times. The flashlight is made of high-quality plastic material, which is tough and wear-resistant, sturdy and durable, and has a long service life. Small and portable- manual led flashlight is only 8.9 * 4.4 * 2.7 cm / 3.5 * 1.73 * 1.06 inches (length * width * height), compact and light, easy to carry, does not take up too much storage space, very suitable for outdoor use. Strong light-The manual LED flashlight uses three high-brightness white LED lights, which can bring out your strong light, effectively drive out the darkness at night, and bring you a clear vision. Package included: 1 x Flashlight