1. When connecting the device to the power supply, pay attention to the positive and negative poles, otherwise the switch indicator light not light up. Voltage: DC12V, power cord length 2.2m, power 180W. Generally, 2-3 grams of oxalic acid evaporate completely in 2 minutes, and 4-5 grams in 3 minutes. After the evaporation complete indicator light automatically out, turn off the switch, take out the device, and then cover the nest door with a compress for 10-15 minutes. 2. When the equipment is heated, the temperature of the oxalic acid gas is relatively high, and human hands should not be close to the gas. 3. The equipment and smoke outlet do not need to be cleaned. When the medicine is melted next time, the remaining medicine be automatically melted and used. 4. Please do not disassemble the product by yourself. The product has small parts, and the parts are extremely easy to lose after disassembly., Weight: 1.71740102098 pounds, Manufacturer: Wesafrae