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

Product Overview:
  • Minimum watts: 5
  • Maximum watts: 105
  • Weighs only 4oz
  • Dimmable
  • UL listed
  • 3-Year warranty
  • Learn More

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105 Watt - 12 Volt - Hardwire - Electronic Transformer - Hatch

Pegasus Lighting BBB Business Review

105 Watt - 12 Volt - Hardwire - Electronic Transformer - Hatch

Item #PRS12-105
AvailabilityUsually ships the next business day
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About our 105 Watt - 12 Volt - Hardwire - Electronic Transformer - Hatch

This 105-watt low voltage transformer will power your 12-volt lighting systems. Electronic transformers are generally smaller, lighter, quieter, and cooler than magnetic transformers.

  • Uses: used to power 12-volt AC 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. [Caution: Always attach the load to the transformer before connecting the transformer to power.]
  • Minimum 5 Watts of Load: unless this transformer is powering at least 5 watts of lighting load it will not work properly
  • Minimum 10 Watts with Dimming: when this transformer is connected to a dimmer, it must be powering at least 10 watts of lighting load or it will not work properly
  • Input: 120 volts AC, 50/60 Hz, 0.88 amps
  • Input Leads: one 6-inch white 18 AWG wire (neutral) and one 6-inch black 18 AWG wire (hot)
  • Output: 11.5 volts AC, 9.13 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 6-inch red 18 AWG wires [Suggestion: Use a terminal block for each connection in the 12V output circuit and make certain that these connections are very tight and secure. Also, be sure that the gauge of the electrical wire used in the output circuit is not less than 18 AWG.]
  • Installation: the transformer and all of the hardwired electrical splices (connections) should be stored in an enclosed metal junction box (not included)
  • Compact Size: only 4/5in(H) x 1-3/10in(W) x 3in(L)
  • Lightweight: only 4 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
  • UL Recognized: UL recognized in USA and Canada
  • Brand: Hatch
  • 3-Year Warranty: this electronic low voltage transformer carries a 3-year warranty
  • Large Quantity Discount: If you would like us to quote on a large quantity of 105W 12V AC 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 Recognized  3-Year Warranty Satisfaction Guarantee  Quick Ship Item    Installation Difficulty

Specifications & Measurements

Wiring Diagram

Wiring Diagram for 105-Watt 12-Volt Electronic Low Voltage Transformer


Dimensions of 105-Watt 12-Volt Electronic Low Voltage Transformer

Product Reviews
105 Watt - 12 Volt - Hardwire - Electronic Transformer - Hatch
4 Stars based on 1 Review(s)
San Luis Obispo, CA
4 Stars
I would recommend this item to a friend.

105W 12V electronic transformer
February 19, 2013
Works as advertised. The load is only 80W, so this unit is cruising. Heat is not as much a problem as the 300W unit I'm using and reviewed earlier. This unit was located in a 3-gang metal box that will be fitted with a .125 aluminum cover plate for heat sinking - I want the unit to live a long and cool life.
Compact, relatively inexpensive
Special dimmer needed for light level control, which is much more $$$ than the normal dimmer.

Questions & Answers
By Jere from Denver, CO on November 12, 2014
I have a halogen light fixture with 5 each 20 watt halogen bulbs. Will the 12V ac output from this fixture operate the halogen bulbs properly?

The manufacturers recommended replacement bulb is an Osram Halostar G4 12 Volt, 20 Watt bulb.
By Jacob from Pegasus Lighting on November 12, 2014

This transformer can handle a max of 105W.

Your (5) halogen light bulbs will use a total of 100W.

Since your halogen light bulbs require 12V and it's less than 105W, then yes, this will work.

By Mike from Farmington Hills, MI on November 26, 2012
I have a twin track monorail type lighting system by Eurofase. Can this be used on that system?
By Jacob from Pegasus Lighting on November 27, 2012


It depends on what type of transformer your system requires. I would check with Eurofase to find out the specs needed for your exact lighting system.

If the system requires a 12V electronic transformer rated for at 105W or less, then this item should work.

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