12 inches Rechargeable desk fan battery capacity: 4500 mAh lead acid battery output power 15w using time fan : 5 - 8 hours AC input 100-240V, 50-60 HZ DC Input 12V led power 2W USB port 5V LA rechargeable AC and DC function 2 fan speed adjustment function overcharge and over discharge protection function convenient carrying handle body made of good quality material ( ABS plastic)built-in long-life and non - maintenance, rechargeable battery of good capacity built-in power chord,plug and rechargeable battery. Note: we will not provide any solar panel with fan.Maximum air movement – 12-inch 3 blade design and built-in powerful motor gives a strong and steady stream of cool air.The 12" rechargeable fan works up to 8 hours without power, enjoy a night of sleep with fresh air, no more complains about heat. You can use this fan indoor and outdoor as the occasion requires. It is made of durable materials, this will ensure that it last long and you get value for your money. The dp rechargeable fan is very affordable, energy efficient and it operates quietly, even at high speed. This fan is a must have for everyone.Want to cool down without the pesky background noise? Enjoy two quiet speeds to suit your preference without disrupting family, roommates, or your sleep