Note: 1)To adjust the temperature what you need when using it for the first time. 2)Put the plastic bag on it,then press the handle,the led indicator light will be on,the machine will control the heating time itself.When the LED indicator light is off, the power automatically disconnect.Release the handle after 1-2 seconds,then it’s finished sealing. Voltage: 220 V / 60 hz - Impulse power: 200W Heat Time: 1.5-3.5 Sec Package Contents: Impulse heat sealer +1 Extra sealing elements + Instruction manual