Specification: Working Voltage: 220V AC, Operating Power: 100W Heater length:15.4" (390mm) Heater width: 0.51"(13mm) Wire length: 39.4" (1000mm) Features: The Brew Belt is an adjustable heating belt for fermentation bucket. It is required for home brewing in cold or damp condition that needs additional heat source to maintain minimum fermentation temperature Package include: 1 X heating belt (included plug) Note: 1.Please allow 1-5mm errors due to manual measurement. 2.Item color displayed in photos may be showing slightly. 3.Different on your computer monitor since monitors are not calibrated same.