With insulator on the , safe to use, high reliability. Fast heating, long service life. With mounting holes, easy to install. Adopts high temperature wire as a leading wire, . This system allows automatic control of the heat output in certain areas. Applicable to heating, humidifier, air conditioning and other commonly used devices Condition: 100% new Rated voltage: 12 V. Rated power: 100 W. Mounting hole distance: . 87 mm / 3.4 inches. Mounting hole size: . 4 mm / 0.2 inches. Colour:black Material:Silicone+PTC+metal Size:about 6 x 6 x 4.2 cm / 2.4 x 2.4 x 1.7 inches weight: about 120 g Package Contents: 1 x PTC heater Only the above package content, other products are not included. Note: Light 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.