RANCO TECMASTER Energy Saving Dimmer XML-600RS 600W Rotary Switch Vintage NOS

This is a new old stock (NOS) RANCO TECMASTER Energy Saving Dimmer, model XML-600RS. It is designed to replace a standard single pole ON/OFF wall switch for lights, offering continuous rotary control to dim incandescent lighting. This dimmer can help dial down electric bills, extend bulb life, and is simple to install in minutes. It supports a maximum load of 600 Watts at 120V, 60Hz. The package indicates it was assembled in Mexico. Ideal for vintage electrical projects or energy-conscious homes looking for reliable lighting control.