What's ELV,MLV,Triac Dimming mean?
Dimmers change the shape of the AC wave by chopping off part of it. This reduces the power available to the LED bulb light, which becomes less bright. The terminology about dimmers can be confusing, such as ELV dimmer, MLV dimmer or Triac dimmer... What does Triac dimmer mean? The key electronic component in a dimmer that makes wave-chopping possible is called a "triac". So all these type of dimmers are "triac dimmers". What`s Leading Edge dimming and Trailing Edge dimming? When chopping a sine wave, you can chop the beginning of the wave, or the end of the wave. In both cases you achieve dimming by reducing the outgoing power. The more you chop, the dimmer the light. So if the triac chops the beginning of the sine wave, it`s "Leading Edge" dimming. And guess what it`s called if you chop the end of the wave? Correct! "Trailing Edge". What`s Forward Phase dimming and Reverse Phase dimming? Forward Phase is another term for Leading Edge dimming...