Support five functions: 1. Charging the solar panel (built-in battery) (Example: 4 to 8 hours under intense light, it can be used for 4 to 8 hours)2. Direct charging charger (built-in battery)3. Hand crank energy production (integrated battery)4. Three AA batteries (buy by yourself)5. There is a car charger (built-in battery)Configuration parameters:[Features]: solar panels, environmental and environmental protectionBulb: 36 high-power LEDs[Battery]: 3 AA batteries (provide by yourself )[Size]: The height is about 25cm, the bottom diameter is 10.3cm, and the solar area is 7.3cm * 7.4cm.Lighting time: More than 15 hours[Brightness ]: 36 light cannon brightness, super bright.Voltage: 110-220[Charger]: There is a car charger, a direct charge charger, a USB cable and a hand crank direct charge[Weight]: about 750 grams[ Material]: plastic, ABS, polished surface (better feel)Switch type: button switchGear: one on and one offPacking quantity: 24" 18/20kg"Box caliber: 58*38*55cmSolar panel, capacity of high load, ultra-low power consumption LED, environmental and environmental protectionThe black part of the exterior adopts rubber spray technology, which is very comfortable to handle, beautiful in appearance, fashionable and generous .The astigmatism design at both ends makes the light evenly distributed to every corner of the tent.Ultra-bright and environmentally friendly camping lamp, the black part of the exterior adopts frost technology, the hand is very comfortable and the shape is beautiful, fashionable and generous. Choosing this product will make your work, life, study, travel and night fishing more convenient and free.