The towel hanging space between warming rails is 21” [536mm].
Electrical specification: 125W / 120V / 1.04Amp / 60Hz
The on-off button is on the lower right hand vertical railing. The towel warmer has a temperature regulator and will not exceed 55 degrees Celsius (131 degrees Fahrenheit.) The LaLOO towel warmer does not require a wall switch or timing device.