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Now In: Power Supplies  >  Low Voltage Transformers  >  Electronic Transformers  >  105 Watt - 12 Volt - Hardwire - Electronic Transformer

Product Overview:
  • Minimum watts: 20
  • Maximum watts: 105
  • Dimmable
  • UL listed
  • 1-Year warranty
  • Learn More

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105 Watt - 12 Volt - Hardwire - Electronic Transformer

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105 Watt - 12 Volt - Hardwire - Electronic Transformer

Item #PSET-105
AvailabilityUsually ships the next business day
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About our 105 Watt - 12 Volt - Hardwire - Electronic Transformer

This 105-watt, 12-volt AC electronic transformer, backed by a 1-year warranty, will power your lighting systems. It's fully dimmable, lightweight, and operates at a low temperature.

  • Uses: used to power 12-volt halogen or 12-volt xenon lighting systems.
  • Maximum 105 Watts of Load: 105 watts maximum of lighting load. Unlike most magnetic transformers, these electronic transformers can be used to power the maximum wattage.
  • Minimum 20 Watts of Load: unless this transformer is powering at least 20 watts of lighting load it will not work properly
  • Input: 120 volts AC, 60 Hz, 0.9 amps
  • Input Leads: one white 18 AWG wire (neutral) and one black 18 AWG wire (hot)
  • Output: 11.6 volts AC, 23 kHz, 9.5 amps [Caution: a standard AC voltmeter cannot measure the output of a high frequency electronic transformer; instead, a special "true RMS" voltmeter must be used.]
  • Output Leads: two red 14 AWG wires
  • Installation: the transformer and all of the hardwired electrical splices (connections) should be stored in an enclosed junction box (not included)
  • Small Dimensions: only 1-1/8in(H) x 2.0in(W) x 3-5/8in(L)
  • Lightweight: only 8.1 oz
  • Dimmable: fully dimmable using a dimmer designed for an electronic transformer. An electronic transformer can sometimes work with a standard incandescent dimmer. However, to ensure that your lighting system works effectively with the greatest dimming range we recommend that you use a dimmer that was specifically designed to control an electronic low voltage transformer. Additionally, using this type of dimmer will diminish the possibility of an audible hum when the dimmer is used – especially at low light levels. (Caution: dimmer should always be connected to the input side, 120V side, of a transformer.)
  • Short Circuit Protection: yes with auto-reset
  • Overload Protection: yes with auto-reset
  • Low Heat: low operating temperature
  • Color: black
  • UL Recognized: UL recognized in USA and Canada
  • 1-Year Warranty: this electronic low voltage transformer carries a 1-year warranty
  • Large Quantity Discount: If you would like us to quote on a large quantity of Electronic Low Voltage 105-Watt, 12-Volt, AC Transformer, 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 Recognized  1-Year Warranty  Satisfaction Guarantee  Quick Ship Item    Installation Difficulty

Product Reviews
105 Watt - 12 Volt - Hardwire - Electronic Transformer
4.5 Stars based on 3 Review(s)
Burbank, CA
5 Stars
I would recommend this item to a friend.

Puck Light Transformer
June 1, 2013
Very compact and easy to install.

5 Stars
I would recommend this item to a friend.

January 26, 2013
Very good
Low price

Madison, WI
4 Stars
I would recommend this item to a friend.

Does the least for a while.
December 20, 2011
In 2007, our track lighting in our kitchen suddenly stopped working. This was an IKEA light the quality obviously wasn't meant to last. I checked the transformer, and found that it was no longer putting out the proper voltage. I checked with our local lighting store, and they quoted me $100+ for replacement of this exact same transformer. I asked if they were serious, and they told me that they were. So I left the store and went online. I found and ordered this unit from Pegasus to replace the original transformer. It worked great...for a while. Now four years later (2011), that replacement unit has failed, and I have once again ordered another to replace it. That transformer was causing the lights to flicker on and off after continuous usage. Replacing it with a new transformer has done the least for now. This product appeared to be identical to the previous one I was sent from Pegasus in 2007 on the surface, but I can't comment about anything non-superficial. Time will tell if I will get more than four years out of this one. That being said, this is a fairly inexpensive transformer, and one which has seen a lot of use in our house. It's hard to be too critical, especially when there's always the possibility that this fixture is just prone to burning out's on it's third one after all.
Questionable reliability

Questions & Answers
By gary from St. Louis mo on July 19, 2012
I need a transformer for a low voltage interior cable lighting system, it has about six 20 watt lights, this is also on a dimmer, can you give me recommendations. It is to replace the transformer for these lights,
By Jacob from Pegasus Lighting on July 20, 2012


We do not recommend using our electronic transformers with cable lighting systems because of the long length of wire that can cause a problem known as voltage drop.

Instead, we recommend using a magnetic transformer, specifically one designed to compensate for voltage drop such as this product:

From the Ikea website, I cannot tell what voltage the lights require (12-Volt or 24-Volt). Does the old transformer have any info about voltage on its label?

Also, there is some concern about humming when dimming magnetic transformers. It would be wise to make sure your dimmer is designed to work with magnetic low voltage transformers.

By Anthony Barber from Dahlonega, GA on July 2, 2014
Will this work for LED lighting?

By Chris from Pegasus Lighting on July 3, 2014


Usually you will need an LED driver ( for LED lighting. However, if you are using, for example, 12-volt LED light bulbs in a 12-volt lighting system then this transformer would work.

By Gerry from Ontario on October 27, 2014
Is this a class 2 transformer?
By Jacob from Pegasus Lighting on October 28, 2014

No, class 2 transformers are less than 60W for 12V systems.

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