Specifications: Condition: 100% Brand New Color: Black Optional Type: #1 Rated Voltage: 12V Rated Power: 150W (15A) #2 Rated Voltage: 24V Rated Power: 150W (10A) #3 Rated Voltage: 24V Rated Power: 250W (15A) Mounting Hole Distance: approx. 87mm / 3.4" Mounting Hole Diameter: approx. 4mm / 0.16" Product Size: approx. 60 x 60 x 42mm / 2.4" x 2.4" x 1.7" Environment Temperature Range: -5~65℃ Package Weight: approx. 160g Quantity: 1pc Package Included: 1 x PTC Heater PTC Air heater with fan series product instructions: 1. When bare wire extend from the heater,the positive and negative electrode are not distinguished. Please input the rated voltage and the sufficient current. 2. When bare wire extend from the fan,the red is positive electrode and the black is negative electrode. Please input the rated voltage and the sufficient current. 3. The heater can be used in extremely humid air environment. It doesn't matter if a small amount of water droplets are splashed on the surface of the heater, but they can't be immersed in liquid. 4. The heater's black bracket insulation is high temperature resistant, but the metal part is conductive. Please pay attention to safety when using. 【SAFE AND RELIABLE】The surface of the PTC heater is insulated, safe to use, and highly reliable. 【EASY TO INSTALL】The PTC heater heats up quickly and has a long service life. With mounting holes, easy to install. 【INSTRUCTIONS FOR USE】The PTC heater uses heat-resistant silicone wire as the lead wire, the red line represents "+", and the black line represents "-". 【ENERGY SAVING】This system is energy saving, when the heater increases the environmental temperature, the power will reduce gradually within certain ranges 【SCOPE OF APPLICATION】PTC air heaters are suitable for heaters, humidifiers, air conditioners and other common appliances.