Which is designed with waterproof design, rain and snow do not affect the use. 【EASY TO INSTALL】Peel off the paper backing from the oil pan heater pad and stick the pad to a clean metal surface, the heater has two lines, regardless of positive and negative to the battery can be (can be connected in series with a car switch for control on and off more convenient). 12V 100W,Silicone Heater Pad/Mat,Car Fuel Filter H... – Grandado It is resistant to high temperature up to 200°C and low temperature up to ‑60°C. 【HIGH QUALITY】This heating pad is made of flame retardant silicone. 110V 300W Heater Pad Engine Oil Heater Pad Oil Pan Heater Pad Heater Pad These 220V/110V oil pan heater pads have a built-in automatic thermal protector that keeps the heating temperature at a constant 150°C-200°C 【WATERPROOF】The leading wire of the heating pad is upgraded to a composite set of wires, which is more durable. Very long service life, very easy to install and remove. Once attached, the pad will be less likely to be removed. Car Cores Silicone Rubber Electric Heating Pad For Car Engine Block Oil Pan Heater Pad Thermal Protector Flexible 110V/220V Customizable - 15 Engine Heater 【100% WARRANTY】We always strive to provide our customers with the best service and products.