These are used mainly on home tanning beds, but also on many lower and mid priced commercial tanning beds. This timer is 20 minute and 120 volts, single pole. Call 1-800-274-1744 if you are not sure what you need.
This is a NON-RETURNABLE item. This can be retrofitted to other systems and devices that use electric timers, but these configurations are not supported. Knob not included.