A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.