This Windshield Defogger Fan is designed for defogging and defrosting, and proving warmth for vehicles in winter or cold weather. It is small in size, very portable, and easy to install, just plug it into the cigarette lighter socket on the car and switch to the heating method. The output of the cigarette lighter should not be lower than 12V/ 12.5A/ 150W. Anything below this value will cause damage to the car. Specification: Name: Windshield Defogger Fan Size: About 7*16cm/2.75*6.3inch Power Cord Length: About 1.6m/5.25ft Color: Black Material: PA + ABS Weight: About 430g (Including Packaging) Style: 12V (Car Model) / 24V (Truck Model) Power: 150W Fixing method: Put it on the anti-skid pad, or fix it with double-sided tape Packaging: Color Box Packing List: 1* Windshield Defogger Fan