Ecophon fits a digital dimming system with a ‘switch dim’, a control signal operated by a push-to-make switch. A number of these types of switches are readily available on the market. Several switches can be wired into the circuit, enabling the luminaires to be controlled from different locations.
No more than twenty-five ballasts should be connected to the same system. If additional ballasts are required, a special accessory (interface) must be used. A digital system allows a more balanced, even light control compared to analogue systems, in which the length of wires between the individual light fittings and the regulator influences the output.