The circuits of the dimmer can dim 400W. For non-resistive loads (e.g. LED lights or electronic ballasts), capacitors are usually installed that generate high inrush currents. Due to these high inrush currents, it can happen that the dimmer switches off or cannot automatically detect the load type. Therefore, care should be taken in the design to avoid too high inrush currents. With LED lamps, you are on the safe side if the specified "conventional power" is taken into account in the design. For LEDs it is usually described e.g. "5W LED - replaces a 60W incandescent bulb". A factor of about 1:10 is currently common. With 40W maximum load e.g. for LED luminaires or electronic ballasts you are on the safe side. A significantly higher load often works as well, but this then depends on the specific illuminant or ballast used and must be tested.
Can the dimmer also dim 400W LEDs? What do I need to consider when sizing the load?
