Ludger 9-inch fan rechargeable with solar panel

Fan Specifications: EL-912WF-SP - solar panel included • 3.7V 4000mAh × 3pcs Li-battery - Adjustable fan speed knob - Over charge & discharge protection - 1.5m adapter - DC 13.5V, 2.5A (max) input & 5VZA output - 25% /50% / 75% / 100% power indicator - Charging time: 3-4hrs (13.5V 1.5A) - Working time: 7-24hrs High speed: working time is about 7 hours Low peed: working time is about 24 hours - Power: 12W - Material: ABS