[Safety and security]The PTC car space has the advantages that ditional heating elements doesn't have, such as constant temperature heating and high thermal conversion rate. No fire& flame will be generated while using. We hope this small product could produce more warm air for you at this cold winter[Stability and bility]The compact design will e it more ble to use in daily life. The general standard is that the power attenuation is le than 10% after 2000 hours usage. And for larger space, maybe you could install 2 or more s in the room.[Energy saving]This PTC fan have characteristics of automatic energy saving. This system allows an automatic regulation of the heating power within certain ranges. When the air was warmed, it could consume le power energy than before.With insulator on surface, this item is safe to use, high reliability. It can heat up quickly with long service life. With mounting holes, it is easy to install. It adopts high temperature wire as leading wire, ble. This system allows an automatic regulation of the heating power within certain ranges. Applicable for , humidifier, air conditioning and other commonly used appliances.Specification:Condition: 100% Rated Voltage: 12VRated Power: 100WMounting Hole Distance: Approx. 87mm / 3.4inchMounting Hole Size: Approx. 4mm / 0.2inchColour: blackMaterial: metal + plastic + ceramic PTCSize: 90 x 60 x 42mmPackage Contents:1 x small Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.