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Now In: Power Supplies  >  Low Voltage Transformers  >  Electronic Transformers  >  300 Watt - 12 Volt - Hardwire - Electronic Transformer - Round - Fulham Pony

Product Overview:
  • Minimum watts: 20
  • Maximum watts: 300
  • Dimmable
  • Short circuit protection
  • UL recognized
  • 2-Year warranty
  • Learn More

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300 Watt - 12 Volt - Hardwire - Electronic Transformer - Round - Fulham Pony

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300 Watt - 12 Volt - Hardwire - Electronic Transformer - Round - Fulham Pony

Item #PET-120-12-300W-R
AvailabilityUsually ships in 2-3 business days
Quantity  Add to cartAdd to Wishlist

About our 300 Watt - 12 Volt - Hardwire - Electronic Transformer - Round - Fulham Pony

The low voltage Fulham round electronic high frequency transformer is designed with UL recognized components and solid state electronics. Its features include dimming capability as well as short circuit, overload and thermal protection. The transformer is capable of operating a variety of lamps with a maximum load of 300-watts.

  • Uses: used to power 12-volt AC lighting systems
  • Maximum 300 Watts of Load: 300 watts maximum of lighting load. Unlike most magnetic transformers, these electronic transformers can be used to power the maximum wattage. [Caution: Always attach the load to the transformer before connecting the transformer to power.]
  • Minimum 20 Watts of Load: minimum load without dimmer is 20 watts; minimum load with dimmer is 50 watts. Unless this transformer is powering at least 20 watts of lighting load it will not work properly.
  • Input: 120 volts AC, 50/60 Hz, 2.5 amps
  • Output: 12 volts AC, 24kHz, 25 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.]
  • Input Wires: one white and one black wire
  • Output Wires: two blue wires
  • Diameter: 3.7in
  • 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.]
  • Power Factor: 0.982
  • Short Circuit Protection
  • Overload Protection
  • Thermal Cut-Off: yes, auto-reset at 125 degrees C.
  • Color: black
  • Brand: Fulham
  • UL Recognized in the USA & Canada
  • 2 Year Warranty
  • Large Quantity Discount: If you would like us to quote on a large quantity of Fulham Pony 300W 12V Round 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   2-Year Warranty   Satisfaction Guarantee     Installation Difficulty

Product Reviews
300 Watt - 12 Volt - Hardwire - Electronic Transformer - Round - Fulham Pony
5 Stars based on 1 Review(s)
5 Stars
I would recommend this item to a friend.

Worked Like a Champ
March 2, 2015
My wife and I purchased this transformer to replace an old, heavy Toroidal transformer in an Italian midcentury chandelier. The Fulham pony transformer was a fifth of the weight of the old Toroidal it replaced. We test-wired it to the chandelier to make sure it would power the chandelier sufficiently, then modified the existing chandelier bracket to accept the new Fulham Pony.
Small, lightweight, provides good power at 12V

Questions & Answers
By Kerri Kolbe from CT on November 10, 2014
The transformer I need sits inside the chandelier canopy, how much does this weigh? And how big is the opening in the middle?
By Jacob from Pegasus Lighting on November 10, 2014


The hole is 1/2 inch diameter.

The weight of the unit is 1 lb.

By Aaron from Atlanta on September 12, 2014
I have a 2 track, low voltage rail lighting system. The transformer is over heating after several hours of being on and the lights shut off until it cools down and works again. I am thinking I can replace with this item as it is approx the same size as the round transformer that is currently there. Thoughts?
By Jacob from Pegasus Lighting on September 12, 2014


You may want to first make sure you aren't overloading the existing transformer. It may be as a simple as using a lower wattage light bulb so that it doesn't overheat.

Other than that, yes, if your system is 12V and less than 300W then this would be a good replacement.
By Kent from Denver on September 12, 2014

I purchased the transformer and installed it. It works perfectly. I would recommend it.

By Steve from Virginia on January 16, 2015
I am looking for a transformer to replace an old Toroidal transformer. Rating on the Toroidal transformer are 240 VA with 12V output. The chandelier I am looking to power uses 12 20W two pin push-in bulbs. Will this transformer replace the Toroidal I currently have?
By Jacob from Pegasus Lighting on January 16, 2015

Steve, yes, it should. It can handle 300W, whereas the one you are replacing was rated for 240W and it also outputs 12V.

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