Its used to code letter on item such as batch no,manufacture date, production date ,expiry date etc on the sachet/ product... ... voltage: 110v/220v, 50/60hz. power: 120w. printing speed: 20-70 per min. temperature: 0-200 degree . printing area: maximum of three line that is 12×3 word. size (l×w×h):380×330×465