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

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How many dimmers types?

What light sources can be controlled by dimmers?

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Dimmers can control Incandescent, magnetic and electronic low voltage, fluorescent, neon, and halogen. You need to have the right kind of dimmer though, and possibly an interface or a special ballast. In a typical residential application, you would only use dimmers for incandescent or low voltage lighting.

Posted on Jan 11, 2009

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Nearly all light sources. Exceptions would be Metal Halide and some of the High-Pressure Sodium fixtures. Here's a list (although not exclusive):

Incandescent
Magnetic Low-Voltage
Electronic Low-Voltage
Neon / Cold-Cathode
Fluorescent Dimmable Ballasts 120 / 277
LED (Yes, some LED can be dimmed - See Lutron Electronics Application Note #138)

The key for dimming is in the control. You need to know the amount of wattage you are dimming and what you have available for power. Almost all residential applications are 120V. Newer homes all have neutral wire runs along with power that makes dimming your lighting that much easier. You do need to pick a control based on the load type.

Posted on Oct 17, 2008

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Certain dimmers can control standard incandescent lamps that use 120 volts while other dimmers can control low voltage xenon or halogen light sources that use 12 or 24 volts.

Posted on Aug 27, 2008

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1 Answer

My led lights start to strobe when I turn on exterior light that is fed from the same line circuit. Solution?


There are two things coming into play here; the lamps and the dimmer(s).

First; LED and CFL type lamps that are to be used on a dimmer switch - must be identified for that use. Looks for the word dimmable on the packaging or bulb itself. These lamps are generally a little more expensive than their non-dimmable counterparts. If it does not indicate it is dimmable, then it isn't - and should not be installed on a circuit controlled by a dimmer switch.

Second; a dimmer switch that will be used to control LED and CFL bulbs (that are identified for use with a dimmer) must also be identified for use with dimmable LED and CFL bulbs. Again, these dimmer switches will be identified for this use and will cost more than those that work with standard filament type bulbs.

Lutron has dimmers for your circuit called a "C•L™ Dimmer" and supports Incandescent / Halogen, Dimmable Compact Fluorescent (CFL) and Dimmable Light Emitting Diodes (LED) type lamps. have a look here:
Lutron Maestro Dimmer and Switch Models

Also, be wary of the total load (wattage) of the lamps being controlled. If you have multiple dimmers in the same box, derating of the switch's wattage capacity (due to increased heat) will be required.

Dec 03, 2015 | Maestro Dimmers

1 Answer

I have replaced Decora dimmers with the Adorne dimmers not the lighting is emmiting a high frequency noise in the mid dimming range. The lighting is 20/35 watt halogen lamps. Why and how can I fix this?


They design dimmers for either incondescent lighting or fan motor controls. Always check which one you purchased. You can't use the motor control dimmer on lighting and vice versa. Even if you purchased the correct dimmer remember that it is for incondescent lighting only (ordinary light bulb). Incondescent lights have a resistance whereas fluorescent has a capacitance and an inductance. Halogen lamps may have a capacitance and an induction too and are creating havoc with the mosfet transistor inside the dimmer. This can also cause the dimmer to fail. Read the instructions on the dimmer to see what type of lighting is allowed.

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1 Answer

The transformer i have has a minimum wattage of 70 w and the maximum wattage of lights is 56w is this ok


Hi Richard,

I'm an electrician and can help you with this question. I'm not quite sure of your question as there is no mention of a dimmer - yet it is in the dimmer category. A transformer rated at 70W should be able to support 56W of lighting, as the lights represent 80% of the capacity of a 70W transformer. Your terminology is a bit unclear however.

Transformers are usually rated in VA, not watts - but if you've got one that says it is rated for 70 watts, this is generally the maximum power it will handle, NOT "minimum". I guess I would feel more comfortable knowing what the transformer is a part of and the type of lights / fixtures you're trying to use with it.

Some lamp types (fluorescent, and other types with a "ballast" or tansformer) are not supposed to be placed on a dimmer circuit - *unless* it is labeled specifically as usable on a dimmer circuit.

I am imagining that you are attempting to use a line voltage track and light fixtures that have a built-in transformer (making them low voltage lights really) on a dimmer, or some other arrangement whereby you "dim" the input of a transformer to control the brightness of the low voltage lights. Regardless of the wattage of the transformer or lights - doing so will create a fire hazard and should not be done. Transformers are designed to work at specific voltage and frequencies (60Hz) and should never be connected to a mismatched power source.

If I am missing your question, please provide a "bigger picture" of what you have and what you are trying to do.

I hope this helps & good luck!

Jan 10, 2013 | Dimmers

1 Answer

I changed the light bulbs in the fixture it controls, now it does not work. What is wrong?


This switch is designed to dim incandescent lamps. It has nothing in its description about being used with CFL (compact fluorescent lamps) types. If you are attempting to dim standard CFL types, it will not work.

CFL's are available in both dim-able and standard types. As you may have guessed, only those marked as "dim-able" will work with a dimmer switch. Dim-able CFLs cost slightly more than standard CFLs but may be controlled by any switch. Dimmer switches may only control incandescent and other type lamps that specifically state they are compatible with dimmer switches.

If you are attempting to dim incandescent lamps, make sure that you are not trying to dim lamps with a total wattage greater than the dimmer can handle. Most dimmer switches are rated for 600 watts, if you have two dimmer switches under one wall plate, the wattage rating drops to about 500 watts. This de-rating is because of the heat the switches create. There are dimmer switches that can dim more than 600 watts, but the price skyrockets for a 1000 watt dimmer, and keeps climbing.

If your wattage is within the limits of the dimmer, check the bulbs. If they are ok, the dimmer may have failed and require replacement.

If you found my reply helpful, please rate it "4 thumbs up". Good luck & thanks!

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1 Answer

I believe my power source is in the ceiling. I just want to wire a light but use a leviton switch and dimmer at the wall. Can't figure this one out. Can you help. There are two red wires, one black and...


Question needs more details. Let me answer as if you have one light and one switch, and one cable coming into switch box from ceiling.

Usually a switch-dimmer combo operates 2 different Loads (lights).
One light is controlled by switch, other by dimmer.

If power source is in ceiling, then one cable enters switch box.
Cable has black, white and ground wires
Old switch had 2 brass screws where black and white wires connect
Black wire brings Hot down from ceiling, and white wire connects back to Load (fan).
Neutral wires are in ceiling box, and not inside switch box, and are discussed.

With new dimmer: Black Hot wire from ceiling connects to dimmer black wire.
White Load wire connects to one of the red wires.
The other red wire goes to another Load, which is unknown at this point.

Add a comment for more free help. Say what cables and wires enter box, and what Loads you are controlling. Also add exact model number so expert can reference manual. Levition instruction sheets and manuals usually have toll free number.

Also take advantage of fixya expert assistance live.
For a price, expert works with you via e-mail or phone while you work on circuit or any do-it-yourself project.
Fixya is always less expensive than a service call.

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1 Answer

My Lutron dimmer/lights suddenly will not turn on. all electricity works throughout the house. The green light that usually is lit on the panel is not on either. any suggestions?


Indicator light is OFF.
Either dimmer stopped working or power to dimmer is off.
Check if electricity is present inside box.
Check nearby electrical plug to see if everything nearby has power.
Swap dimmer with regular switch and see if lights turn ON.
Check dimmer wires: if wires to dimmer are pushed into 'quick connect' holes on back of dimmer, these wires can get loose.
If dimmer is connected by wire nut, sometimes a wire can pull loose.
If no electricity is inside the box, and breaker is ON, then there is a loose wire inside one of the boxes on that circuit and electrician has to track back until loose wire is discovered.

Replacement parts for in-wall devices are not made.
If new dimmer is necessary, consider lighting factors:
Total wattage of lights. New dimmer has watt rating.
Type of lights. Dimmers specify florescent or tungsten (incandescent) or both.
Single-pole and 3-way. If two dimmers control same lights, one is control dimmer, other is companion dimmer.

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1 Answer

Lutron dimmers throught the house, lights go high brightness to low all by themselves, is this just a bad dimmer?


I have spent considerable time on the Lutron site past couple days looking at their dimmers.

Lutron has a lot of dimmer varieties. The basic breakdown is 600Watt and 1000Watt. But different dimmers control different types of lighting.
Here is the long list of Lutron dimmer manuals:
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http://www.lutron.com/Service-Support/Technical/InstallationInstructions/Pages/InstallationInstructions.aspx?syst=Dimmers+%26+Switches&prodn=Maestro%C2%AE+dimmer+%26+switch


I cannot find a specific troubleshoot manual for Lutron dimmers
So I suggest 4 things:
1) Feel the dimmer switch for heat >>> if it is getting hot (not warm), then that dimmer is dangerous, so remove dimmer immediately, add up your total bulb wattage to make sure you're below the 600 or 1000 watt capacity of you model dimmer
2) Look at the list of manuals shown at link, and make sure your dimmer matches the type of bulb you are using. Your dimmer model number and wattage should be printed on side or back of dimmer.
3) These dimmers use electronics to control the lights. Electronics go bad. The higher the wattage controlled by your dimmer, the more heat, and the shorter the dimmer life.
4) Short in the wires. Replace your dimmer with one from Home Depot and see if the condition persists. If it does, then a short is probably somewhere in that circuit. Troubleshooting a short is another long answer that needs more wiring detail ... please repost if you have a short.

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2 Answers

I AM REPLACING A LUTRON DIMMER SWITCH AND HAVE i THINK MADE ALL THE RIGHT CI=CONNECTIONS - COULD A FAULTY GROUNDING BE THE PROBLEM?


As a general rule, grounding will not affect operation of dimmer.
Type of dimmer, type of switch being replaced, type of load, and how you connect wires will affect dimmer.

Here is Lutron dimmer switch page
http://www.lutron.com/Products/StandAloneControls/Dimmers-Switches/Pages/DimmersSwitches.aspx

What is the load? Are you wiring dimmer to a ballast? Or fan? Or incandescent lights? Or florescent lights?
Are you replacing a 2-way or 3-way switch?
What color are your dimmer wires?
How many wires were connected to switch?
Can you re-install the switch, and know where each wire went?
Did you replace a light with a fan, and then want the dimmer to slow the fan? Not every dimmer will work with a fan, or florescent lights.
Dimmers cannot dim LED lights.

If I know what type switch you are replacing, and the type of load you want to control, and the specific dimmer you have, I can answer the question.

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1 Answer

What Kind of Dimmer?


If the low voltage lighting system uses an electronic transformer, then a dimmer designed for this type of transformer should be used. Likewise, if the low voltage lighting system uses a magnetic transformer, then a dimmer designed for this type of transformer should be used.

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