Features: Dual purpose: The speed governor can be used in household electricity with 220v voltage, the battery clamp can be used for 12V batteries(Speed not adjustable for 12V clips). Save time- for using charcoal to make a fire. Speed up the barbecue rate of progress, very convenient for making a fire. Made of new and high-quality iron material ,lightweight and durable. The casing and gears are made of cast iron, which not easy to damage, wear-resistant and high-temperature resistant. The surface painted to prevent the fan from rusting. A great tool for fireplaces, fire pits, BBQ, camping, indoor and outdoor fireplaces, outdoor grill chimney, picnic cooking or other camping hiking activities. Specifications: Item: Air Blower Charger: US Adapter Material: Iron Voltage: 12V - 220V Output: 40W/60W/80W/100W Speed Governor: 220V Battery Clamp: 12V Size for 40W Blower: approx 18cmx16cmx13cm/ 7.08x6.3x5.12in --- Air Duct Diameter 3.7cm/1.46x Size for 60W Blower: approx 20x17x13.5cm/7.87x6.69x5.31in--- Air Duct Diameter 4cm/1.57in Size for 80W Blower: approx 20.8x19x13.5cm/8.19x7.48x5.31in--- Air Duct Diameter 4.3cm/1.69in Size for 100W Blower: approx 23x21x17cm/9.05x8.27x6.69in--- Air Duct Diameter 4.5cm/1.77in Package Includes: 1PC Air Blower 1PC Speed Controller 1PC 12V Clip note: Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks! Due to manual measurement, please allow an error of 0-1cm. Please make sure you do not mind before bidding.