Product details 2019 12V/24V 8W/15W USB Powerful Car Fan Summer Car Dual-head USB Fan 360 Degree Rotation Air cooler cooling fan for Car Truck ? Description: ? Material: ABS Style: 12v single-head fan with cigarette lighter plug 24v single-head fan with cigarette lighter plug USB car dual-use single-head fan 12v car double-head dedicated fan with cigarette lighter plug 24v truck double-head dedicated fan with cigarette lighter plug USB car dual-use dual-head fan 19-year upgrade 12V 19-year upgrade 24V Weight: single head 200g / double head 620g / 19 years upgrade 780g ? Feature: ? 1.360 degrees up and down rotation 180 degrees or so rotation multi-angle air supply quickly reduce the temperature inside the car; 2. Use copper motor to improve service life and reduce energy consumption; 3.5 pieces of Rotary Vanes and double head design the wind is more powerful; 4. The bottom is equipped with a super-adhesive rubber pad which is specially designed for driving and is safer and more reliable. ? How to choose: ? 12V: Suitable for battery models such as family cars minivans and off-road vehicles; 24V: Suitable for two battery models such as trucks and forklifts. ?USB: Can be used in both home and car. ? ? “