This item is only with only one heat setting. When you want to use the warmer, plug in.
When not use, just plug out.
Front:
Size: 33*193.5cm
110-230V, 50Hz, 400W
Rear:
Size: 40*210cm
110-230V, 50Hz, 500W
Temperatures on tire:
After 25min: 82.74'C in average
After 60min: 84.38'C in average
After 120min: 91.55'C in average