Question about Lutron Electronic Low-Voltage Multi-Location Dimmer by Electronics, Inc

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There is no power to this dimmer and led on the left to it stays off.

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I have 2 led transforms connected to a toggle switch. Can I put a toggle dimmer 600W controlling these transforms?


That depends on several things. Some LED power supplies are not dimmable, and will flash instead of dim properly when used with a dimmer. Many will work just fine. There are also specialty dimmers that are designed to work with transformers, though I've not found them much different.

Oct 30, 2015 | Electrical Supplies

1 Answer

Why does leds hesitate coming on with lutron dimmer


Often led s hesitate even with single pole switch. It's probably not the dimmer. Led s get powered from a transformer inside the fixture and it just takes a second for them to get going. I've found its not consistant. The same two recessed lights have different start up times.

Feb 19, 2015 | Lutron Electrical Supplies

1 Answer

Cooper 9534SG-K master dimmer amber LED goes out when lightsbturned off


Any switch with a light in it needs power to the switch along with neutral

May 07, 2014 | Cooper Wiring Devices Aspire Smart Dimmer...

1 Answer

Led christmas lights too bright


Usually if you plug a lamp dimmer in, you can dim LEDs. The problem is that you may be using a switch-mode power supply which will give feedback and automatically increase the voltage. The manufacturer is probably the only safe way to get information as to whether this can be done.

Dec 12, 2013 | Electrical Supplies

1 Answer

My master dimer and companion dimer led lights went out and I can't turn the light fixture off. The light stays on but the switch does nothing. Do both switches need to be replaced or just one and how do I...


If you can't turn them off, then chances are that the dimming element within the master dimmer shorted. Some dimmers can get triggered by a hellacious bulb blow-out where a surge of current will ruin the semiconductors in the dimmer and, basically, short it out. If that's the case, I can't guarantee that nothing was broken in the companion, but zero dimming capability usually means the master dimmer.

Also, because its shorted, there's not voltage left around for the dimmer's to use to power up themselves - that's probably why the LEDs on neither device are turned on anymore. Replacing the dimmer should fix that.

Jan 09, 2011 | Cooper Wiring Devices Aspire Smart Dimmer...

3 Answers

If the legrand dimmer 400w - pro21 can function with led dimmable light "philips master led spot "


The answer is NO. You need a Trailing Edge dimmer to control LEDs.

The Phillips master LED spot manual says
:
Lighting controls: bulbs are dimmable 20-100% with ""select"" Trailing Edge RC devices
http://www.prismaecat.lighting.philips.com/FredhopperPDFWebServiceInter/docts/1d8ea75f-e889-424d-92dc-450fbeb85f6a/Smart_LED_Spot_da.pdf

The Legrand pro21 manual does not say anything about being a Trailing edge dimmer.
http://www.legrand.com.gr/gr/gr/liblocal/internet_greece/PDFS/NOTICES/IOBL/ROOSTATES/775637EN.pdf

Legrand diagrams show what appears to be incandescent bulbs, and say nothing about LEDs

LEDs cannot be dimmed as ordinary incandescent (tungsten) bulb.

More reading:
Wikipedia article on dimmers includes technical stuff on Trailing edge dimmers
http://en.wikipedia.org/wiki/Dimmer

2 sites show LEDs bulbs that dim:: both seem new ...
http://news.thomasnet.com/fullstory/LED-Bulbs-feature-smooth-dimming-range-566574

http://www.earthled.com/lumiselect-dimmable-led-light-bulbs.html

Oct 11, 2010 | Legrand On-Q/ ALC 600W Dimmer Switch,...

1 Answer

My laptop won't power up. I have removed the battery and tried starting it, nothing. I removed the AC source and tried with only the battery and nothing. I noticed the led is a little dimmer than normal...


I know this sounds simple but have you checked the power connections at the brick (middle of the power cord) often this comes loose and is not noticed until battery is dead. The leds staying dim is what made me think of this. They will go out when on battery only especially if power cord is not producing any power. When you plug in the laptop do you see a little battery charging light come on?

Jun 16, 2010 | Dell Latitude 110L Notebook

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