features:the Heat Conversion Rate Of Ceramic Heater Is High, Less Power Consumption.automatic Thermostat And Adjust The Power, Automatic Constant Pressure, Improve The Circuit Securitythe Power Can Be Adjusted, Very Useful For Speeding Up Demisting And Defrostingadjustable Mounting Bracket For Easy Positioning.this Ceramic Heater And Fan Provides Instant Heat Even In The Coldest Conditions.s:keeps You Cool In Summer And Warm In Winter.when Switch To 300w Key, The Current Of The Car Is Up To 25a, Please Make Sure Your Car Can Work In This Situation.if There Is A Huge Difference In Temperature Between Outdoor And Indoor, The Fan Heater Will Get The Air Warm Up Slower Than Usual,this Situation Is Normal.specifications:current: 20ainput Voltage: Dc 12voutput Power: 150w, 300wmaterial: Plasticcolor:blackcable Length:150cmitem Size: 20*12.5*17.5cmpackage Includes:1x Car Heating Heaternotes1. Due To The Difference Between Different Monitors, The Picture May Not Reflect The Actual Color Of The Item. We Guarantee The Style Is The Same As Shown In The Pictures.2. Due To Personal Measurement Technique Is Different, There May Be 1-3 Cm Error Of The Physical.thank You