[Safety and Security] The PTC car space heater offers advantages over traditional heating elements, including constant temperature heating and high thermal conversion efficiency. No fire or flame is produced during operation. This compact heater is designed to deliver warm air efficiently during cold weather. [Stability and Durability] The compact design ensures long-term durability. The standard specification indicates power attenuation of less than 10% after 2000 hours of use. For larger spaces, consider installing two or more units for optimal heating performance. [Energy Saving] This PTC heater fan features automatic energy-saving technology. The system automatically adjusts heating power within a specific range, reducing energy consumption as the surrounding air warms up. Equipped with a surface insulator, this heater is safe and highly reliable. It provides quick heating and is built for a long service life. Mounting holes enable easy installation. High-temperature resistant wiring is used for enhanced durability. Suitable for use in heaters, humidifiers, air conditioners, and other common appliances. Specifications: Condition: New Rated Voltage: 12V Rated Power: 100W Mounting Hole Distance: 87mm / 3.4 inches Mounting Hole Size: 4mm / 0.2 inches Color: Black Material: Metal + Plastic + Ceramic PTC Size: 90 x 60 x 42mm Package Contents: 1 x Small Heater (Other items not included) Note: Lighting and display settings may cause slight color variations between the product image and the actual item. Measurement tolerance: +/- 1-3cm.