Security: PTC products feature constant temperature heating with no open flame, high heat conversion efficiency, and minimal impact from supply voltage fluctuationsadvantages unmatched by traditional heating elements, making them increasingly popular among R&D engineers for use in electric appliances. Energy Saving: PTC products have automatic energy-saving capabilities. As the ambient temperature rises, the power output gradually decreases, reaching as low as 90%, 80%, or less of the rated power. Long Life: PTC products do not degrade under normal operating conditions. Even after thousands of on/off cycles, performance remains unaffected. Product lifespan is determined by aging rate. Standard power decay after 2000 hours of operation is less than 10%. Rated Power: 100W Rated Voltage: 220V AC/DC Stable Temperature: 200 +/- 10C Size: 113 x 35 x 26mm Heating Material: PTC Thermistor Heating Method: Heat radiation via air flow Lead Wire: Silicone high-temperature wire Suitable For: Small instrument enclosures, small box-shaped heating environments requiring temperature control Package Contents: 1 x Insulated PTC Ceramic Air Heater Note: Lighting conditions and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3cm.