The VOL7035 by Rockville is a 70 volt 35 watt wall volume controller. Our volume controllers are some of the best on the market. These are for constant voltage systems such as 70 volt or 100 volt. The reliability and accuracy is what makes a big difference. Our 11 step controller is precise and accurate. This model supports any zone with 35 watts or less going to it. The euro-block connectors make installation easily. The terminals are fully detachable. We use a beautifully designed plate that will fit in with your standard decor. These are a standard 1-gang size for easy installation. Internally the circuit board is protected from dust build up to ensure long life.