What is the dimming range for DALI ballasts?
Digital ballasts are available that provide a dimming range of 100% to 1% for linear fluorescent lamps, 100% to 3% for compact fluorescent lamps and 100% to 0.1% for incandescent lamps, utilizing a logarithmic dimming curve. The inverse-square dimming curve is used for better control of the lighting intensity in response to the human perception of brightness. Digital ballasts can start the lamp at any desired dimmed level.