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Now In: Lighting Controls  >  Dimmers  >  Lutron Dimmers for Electronic Low Voltage Lighting Systems  >  Lutron Diva Dimmers for Electronic Low Voltage Transformers

Product Overview:
  • Single pole models
  • 3-way models
  • 7 Gloss colors
  • Up to 300W
  • 120V input systems
  • Learn More

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Lutron Diva Dimmers for Electronic Low Voltage Transformers

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Lutron Diva Dimmers for Electronic Low Voltage Transformers

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About our Lutron Diva Dimmers for Electronic Low Voltage Transformers

The Lutron Diva dimmer is a designer-style switch featuring a large paddle to light the room and a sleek slide control to dim it. A built-in soft-glow night light will also enable you to find the switch instantly in a dark room. This model is for low voltage xenon or low voltage halogen lighting systems that use electronic transformers (12 or 24 volts).

  • 2 Models:
    DVELV-300P : 300 watts, single pole
    DVELV-303P : 300 watts, 3-way
  • Dimming Range: full range dimming that can save energy and extend lamp life
  • Poles: dimmer is designed as either a single pole (one control for one lighting system) or a 3-way dimmer switch (two controls for one lighting system)
  • Preset: Diva® models include an on/off switch to save the previous selected lighting level
  • Night Light: Diva® dimmers feature built-in soft-glow nightlight, which is visible best with lighter colors
  • Maximum Wattage: maximum wattage that can be controlled is 300 watts
  • Construction: durable nylon construction
  • RFI Suppression: advanced radio frequency protection circuitry
  • Installation: designed to replace standard toggle switches. These dimmers must be mounted in a wall box. Please see the Installation Instructions for details. [Caution: Always check local electrical codes and the National Electrical Code (NEC) before installing any lighting products. It is also wise to consult with a licensed electrician in your geographical area about any electrical details that you might have questions about and to make certain that you are satisfying all of the appropriate electrical codes.]
  • Wiring: neutral wire required.
  • 7 Designer Gloss Finish Colors: Ivory (IV), White (WH), Almond (AL), Light Almond (LA), Gray (GR), Brown (BR), and Black (BL). (The pricing for all of the colors is identical. However, the lead time for Ivory and White is the shortest; the lead time for all other colors is longer by 3-5 business days.)
  • Wallplate NOT Included: does NOT include a wallplate. Compatible with Lutron Claro style wallplates.
  • Depth: all Lutron Diva® dimmers measure 1.44in deep into the wall box
  • Large Quantity Discount: If you would like us to quote on a large quantity of Lutron Diva® Dimmers for Electronic Low Voltage Transformers, please call us at our toll-free number or use the online Quotation Request for Large Quantities form. We are always happy to provide you with our best large quantity pricing.

UL Listed  1-Year Warranty Satisfaction Guarantee  Installation Difficulty

Specifications & Measurements


Wiring diagram for model DVELV-300P

Wiring diagram for model SELV-300P

Wiring diagram for model DVELV-303P

Wiring diagram for model SELV-303P

Product Reviews
Lutron Diva Dimmers for Electronic Low Voltage Transformers
4.5 Stars based on 3 Review(s)
Sedona, AZ
5 Stars
I would recommend this item to a friend.

Handsome LED Dimmer
May 21, 2015
Out with fluorescent and in with LED! This is a nice-looking LED Low-Voltage Dimmer with a slide bar that replaced the old rocker switch that controlled fluorescent under-cabinet lighting. I like it because it is the same styling as my other dimmers in the same location and you can select the amount of lighting you want without adjusting each time you turn it on. It works like a charm.
Handsome styling Functional Easy installation for electrician

San Luis Obispo, CA
4 Stars
I would recommend this item to a friend.

Lutron Dimmer for Low Voltage Transformer
February 19, 2013
The dimmer is great - just expensive! Works like all other Lutron DIVA dimmers I've used. ONE IMPORTANT NOTE: the dimmer requires a neutral wire. Most "normal" dimmers do not need a neutral to operate, and many residences do not have a neutral in the typical wall box wiring setup used in most rooms. NO NOTE of this is made in the description or in the Lutron info. I learned this only after getting the unit and reading the install instructions! DIY'ers beware! No neutral means pulling a new wire to the wall box which could mean opening up the wall. I was powering my cabinet light install from an outlet circuit with the source right near the dimmer wall box location, so I had no problems. Something to consider...
Merchant Response:
On our Specifications & Measurements tab we have a wiring diagram showing the neutral wire connection for this dimmer. We will also add a note about the neutral wire to the Description tab for this product page. Thanks!
Works very well - acts like all other Lutron dimmers.
Expensive! Also, a neutral is required, a requirement not made obvious in any web documentation. That should be fixed.

Spotsylvania, VA
4 Stars
I would recommend this item to a friend.

As expected
February 24, 2012
Its a dimmer switch - it works. It arrived promptly. Looks like all the rest of our switches. A little pricey.
As expected
Little pricey

Questions & Answers
By Vince Catlin from Thousand Oaks, CA on July 3, 2013
My LET 60 DL transformer has a "dimming loop" and your wiring instructions do not show this. How is this connected?
By Jacob from Pegasus Lighting on July 3, 2013


The dimming loop on your transformer is for connecting to a potentiometer, not a wall dimmer.

If you are going to wire to a wall dimmer, simply connect the line voltage to the dimmer, then connect the dimmer to the input wires of the transformer (black and white wires). Then the blue wires connect to the lighting load.

By Beth from New York on February 12, 2014
Can you use this for LED lights on an electronic low voltage transformer? It says Xenon or halogen. If not, what dimmer is for LED?
By Jacob from Pegasus Lighting on February 12, 2014

Yes, if the LED lights are dimmable by an electronic low voltage dimmer. The product description will indicate the type of dimmer that can be used with it. If not, check with the manufacturer of the LED lights and ask for the recommended dimmer list.

Please note that LED dimming technology varies widely and there are many different ways manufacturers recommend dimming LEDs.

By Dan from Milwaukee, WI on December 10, 2012
Can the dimmer mechanism be separated from the plate, or is the plate and dimmer manufactured as a solid unit?
I already have a Lutron plate and would simply like to install the dimmer.

By Jacob from Pegasus Lighting on December 10, 2012


The wall plate picture is NOT included, so you would only be purchasing the actual dimmer switch.

By Susan from Sun Valley, Idaho on September 25, 2014
If there is not a neutral in the our existing wall box wiring setup, can I still use this dimmer without the neutral? Is there danger in that? I have an existing Lutron dimmer that is not for low voltage function. Can I use my old dimmer? Or maybe skip the dimmer all together?
By Jacob from Pegasus Lighting on September 25, 2014


No, you should not skip the neutral wire. It's never wise to take any chances with electrical wiring.

You may be able to use a line voltage dimmer instead but it completely depends on the lighting system. If you have the components, test it out and see how the dimmer works!

By Jim Hodges from Houston, Texas on September 13, 2012
I have a WAC Lighting rail system that uses an electronic transformer. There are five 12V MR16-G 50 Watt bulbs on the rail. The instructions say "if dimming, an electronic low voltage dimmer is recommended". Is this the correct dimmer for my application?
By Jacob from Pegasus Lighting on September 13, 2012


Yes, this dimmer is correct for your application - as long as the rail system is the only fixture connected to the dimmer. If you are connecting any additional lights, you will need a higher load.

Good luck!
By Cedric from Longmont, CO on September 13, 2012

This dimmer is definitely suitable for your application, this specific dimmer (as any other Lutron ELV dimmer) is specifically designed for working with electronic low voltage transformers (needed for MR16). My company produces an LED MR16 module for OEM manufacturers and I bought specifically these dimmers for tests and trade shows for illustration of compatibility. The Diva is a great product.

By Christopher from Lafayette, CA on January 31, 2013
Can I use this dimmer to control a Low voltage transformer circuit plus a circuit with regular line voltage lights or do I need to control them with separate dimmers?
By Jacob from Pegasus Lighting on February 1, 2013


I would use separate dimmers...
an ELV dimmer for your electronic transformer
a line voltage dimmer for the line voltage lights

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