Trailing edge or leading edge

     The rising cost of energy is certainly driving consumers, retailers, and commercial property owners 

alike to seek out energy-efficient lighting technology.Today we’re examining another element of LED 

dimming: leading edge versus trailing edge dimming.

  
      Trailing edge dimmers (aka “electronic dimmers”):

• The electrical current (sinusoidal signal) is turned off at the end of the AC input waveform immediately before the zero crossing
• Traditionally used for electronic drivers or low voltage transformers (capacitive loads)
• Is not subject to a high inrush of voltage that leads to a high inrush of current
• Does not cause buzzing sound when dimmed

Leading edge dimmers (aka “triac dimmers” or “incandescent dimmers”):

• The electrical current (sinusoidal signal) is turned off at the front of the AC input waveform immediately after the zero crossing
• Traditionally used for incandescent lamps or magnetic low voltage transformers
• Produces a quick inrush of voltage into the load every half cycle which leads to a high inrush current into the electronic components of the LED lamp
• Causes buzzing sound when dimmed (though buzzing is not always perceptible and is dependent on many different factors, such as lamp design and number of lamps on a circuit. Even the dimmer itself, such as whether it allows dimming level adjustments and its minimum load requirements).

Trailing edge dimmers are a better fit for LED lamps. However, because LED retrofit lamps are more likely to be installed on existing dimmers used for incandescent or halogen lamps, many manufacturers design and test their LED lamps to be compatible with leading edge dimmers. Leapfrog Lighting is no exception.

So the short answer as to whether our PAR lamps work with trailing edge or leading edge dimmers is that they work with both. However, we’ve gone through great lengths to test with many different dimmers and only claim compatibility with those tested dimmers, even though they’ve been found to work with quite a few others.

If you are concerned about dimmability of your LED lamp with your existing dimmers, always consult the manufacturer’s product datasheets or contact the manufacturer directly. They should be able to provide you with test reports indicating compatibility.

Let's have a look at our on sale leading edge and trailing edge dimmer

http://www.euchipsonline.com/category/?triacdimmer.html