Features Better Heating: The aluminum alloy and silicone rubber are combined, and the interior is made of flat and ultra thin, electric heating wire. Stable Working: Works stably under the rated voltage AC 220V, the silicone rubber heating pad ensures quick and even heating. For Cold Winter: -60℃ ~ 250℃ temperature resistance, making the heating mat not afraid of high temperature and cold environment. Practical Using: Can be used for heating and dehumidifying various cabinets, such as switch cabinet, communication cabinet, lighting cabinet, anti condensation box, chassis, etc. Easy to Install: The appearance is simple, the size is small, the use is fast, and the installation is very convenient as well. Specification: Item Type: Silicone Rubber Heating Pad Rated Voltage: AC220V Relative Humidity: ≤ 95% R H Dielectric Strength: 2000V/min Insulation Resistance: >50MQ Insulation Silicone Rubber Temperature Resistance: - 60℃ ~ 250℃.  Package List: 1 x Silicone Rubber Heating Pad Package List 1 x Silicone Rubber Heating Pad