What are the advantages of a Universal LED dimmer?

Common dimmers for LEDs only work with leading or trailing edge control. Some LEDs are best controlled with the leading edge principle; others are best controlled with the trailing edge principle. It depends on the electronic being used in the LED and sometimes can only be found out by testing it personally. The advantage of a universal dimmer is that it combines leading and trailing edge control in one dimmer. Should the LED flicker in leading edge mode or the dimming performance not be satisfying in any kind, the dimmer can be switched to the trailing edge principle.

The Ehmann LED Universal dimmer in particular has one more advantage, for example a 3 wire connection that can be used optionally to increase the dimming performance. To use this feature, the neutral conductor (N) needs to be connected to the dimmer. If it is integrated in the house wiring, the dimmer recognizes it automatically and uses the natural zero crossing as a factor to improve the leading or trailing edge operation.