Features: It is stable and not stuck during use, the wind speed is large. Made of new and high-quality iron material ,durable. Plug and setting up fire quickly, helping you make barbecue more easily. Small size, lightweight and portable, easy to carry.An essential tools for charcoal grill BBQ. The speed can be adjusted by using US plug power supply, but there is no speed adjustment function when using clip power supply. Red is positive and black is negative. brand new and high quality Specifications: Material:Iron Type:30W/60W/100W Rotational speed:2800RPM Adjustable speed power input: AC100-240V 50/60Hz Adjustable speed power output: DC12V 1.2A 30W:Approx. 15x12x18cm/5.9x4.72x7inches Air Duct Diameter: Approx. 4cm/1.57 inches 60W:Approx. 18x12x21cm/7x4.72x8.27inches Air Duct Diameter: Approx. 4.5cm/1.77 inches 100W:Approx. 20x15x25cm/7.87x5.9x9.84 inches Air Duct Diameter: Approx. 5cm/1.97 inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set BBQ Fan