Dual functionality and safety: a 12V 150W car heater that works as both a defroster and a heater, effectively clearing fog and frost from the windshield to improve driving visibility and safety. Rapid heat output: built to deliver quick defrosting or warming, so you can drive with clear windows without long wait times in cold weather. Easy setup and secure mounting: simply plug into your vehicle's 12V socket and switch on. includes doublesided tape for secure installation to keep the unit in place during use. Durable and protective design: constructed from heatresistant ABS material, with an integrated fuse and automatic shutoff for added protection during operation. Compatibility and performance: designed for standard 12V vehicle outlets, delivering reliable performance when you need it most. Use scenarios: Winter mornings: quickly defog and deice the windshield before you start your drive. Coldweather commuting: prewarm the cabin to improve comfort and visibility during the first minutes of the trip. Humid or rainy days: rapidly clear fog from the windshield for safer driving after a weather change.