product description Width: 0.5m Thickness: 0.4 mm Power: 220W/ Frequency: 50HZ Specification: 50x120cm/ Temperature: The temperature at room temperature is 50 Installation environment: -20-80 Scope of application: schools/residential communities/hotels/office buildings/libraries, etc. Packing list: 1pcs heating film Features 1. The graphene heating film has a more stable heating structure, long-term operation without attenuation, high performance and good thermal efficiency. 2. Energy saving and electricity saving, the heating temperature of the room is 18-20, and the proportion of electric heating film laying is 60%-70%. 3.24H electric heating film heating, the actual working time of the thermostat controlled electric heating film is about 4 hours. 4. Reliable materials, waterproof materials, layered protection. 5. When the system is working, the surface of the electric heating film keeps running at a low temperature, and the maximum temperature does not exceed 60, so it will not cause burns/explosions and other accidents. The whole system is connected in parallel with stable operation and high feasibility. 6. The electric heating film can be installed and operated in an environment of -20-80, and the surface temperature of the electric heating film after power-on does not exceed 40-50, and does not self-ignite or explode. Reminder: 1.Maximum film length for one row. The maximum carrying power of the heating film is 1300W, but we can solve it in parallel. For example, If you buy 220W heating film, the length of a single heating film needs to be