Have you ever wished there was a more precise way to adjust your heater's hotness? With a duplex switch, you can set it at high or low, but what if you need more options to maximize comfort? Control the heat better with Eurofase's Digital Dimmer. Simply slide the bar for more or less heat. It gives you more flexibility compared to just having one or both elements turned on or off. Each dimmer adjusts the heat of 1 heater or zone. Choose between 1, 2, 3, or 4 dimmers depending on how many heaters or zones you have. This accessory also allows on/off functionality. To turn it off, slide the bar all the way down. Installing thecontrol boxis required for the 10V dimmer. Indulge in utmost comfort with a precise and easy control option for your Eurofase patio heaters. Save on our free shipping offer for patio heater accessories. Buy now!