LED Dimmers

[reko19]

Not sure if this is the right forum, in need of some help with LED dimming. We bought fairly expensive LED lighting fixtures that came with two wire dimmable LED drivers. None of the dimmers worked including Lutron Diva CL specifically designed for LEDs. Contacted the manufacturer, turns out we need "trailing edge dimmer". Based on my research trailing edge dimmers look like old potentiometer (similar to volume control). Are there any other options, did I just waste money on the latest and greatest lighting fixtures so I could use them with dimmers that look like they came out of 1950?

 

[jpmargis]

It would be easier for us to help if you provided the manufacturer and the model number.

 

[wolfdown]

What I think you need is an ELV (electronic low voltage) dimmer. See the VRE06-1LZ on this page http://www.tselectronic.com/shop/product/Leviton-Vizia-RF+-Z-Wave-Dimmers/978

 

[reko19]

fixture is by USAI, here is a catalog cut for the driver:

http://db.lightechinc.com/#!datasheet~id=73

 

[reko19]

What I think you need is an ELV (electronic low voltage) dimmer. See the VRE06-1LZ on this page http://www.tselectro...ave-Dimmers/978

thank you, emailed Leviton to see if it is a trailing edge. switch looks great, would be nice if it works with the driver

 

[Desert_AIP]

Ouch.

From my own experience the Cree CR6 are dimmable by triac (in my case Simply Automated UPB) dimmers.

I also have some LED unercabinet lighting on a dimmable magnetic transformer power supply.
Only about 30% of the dimmer range is usable, there is no discernable dimming above ~33% because of the way the waveform is clipped. That 33% does provide complete dimming range from full bright to off, except the step sizes are larger. A rotary rheostat type dimemr provides full dimming of these units, but as you said, they're ugly and non-automated.

 

[IndyMike]

thank you, emailed Leviton to see if it is a trailing edge. switch looks great, would be nice if it works with the driver

The Leviton that Wolfdown posted will likely work with your LED Driver. It's a bit salty because it includes ZWave - not sure if you require that.

Lutron does make reverse phase controllers designed specifically for ELV transformers. The following explains the applications for both leading and trailing edge phase control and lists the applicable dimmers in a table at the end of the document:http://www.lutron.com/ResourceLibrary/362219.pdf

The Diva DVELV-300P appears to be going for less than half of the Leviton cost and has a bit more pleasing apearance than your CL unit.

 

[reko19]

Thanks everyone for the replies. I ordered and received Lutron DVELV-300P, happy to report that it does work. Although range and smoothness is a far cry from a incandescent or cheap LEDs from Home Depot. Supposedly Lutron Nova T NTELV-600-WH should work as well, haven't tried it yet. I am not committed to ZWave or any other technology yet. Leviton mentioned above looks nice, but they are not cheap.