Thanks to the Gavita Master Controllers our e-series ballasts no longer require a switchboard to be switched on and off and no longer need their own switch to dim or boost them. Now you can just touch a few buttons on your controller to be in complete control of all your connected ballasts at once. Our Master controllers do this, and much more! The Gavita EL1 features auto-dim, auto-shutdown, sunrise/sunset and timer, and one output channel. For one room without auxiliary equipment or alarm contacts, the EL1 is the best choice for you. If you need assistance in determining if this device is right for your set up give us a call and we will be happy to assist you!