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  75 Watt (12v & 15v) Multi-Tap Low Voltage Transformer for Landscape Lighting
Low Voltage Multi tap Transformers
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  • High Performance Magnetic Core
  • Multi-Tap 12&15V, Built In Timer
  • Lifetime Warranty

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Retail Price $199.99
Previous Sale Price $139.00
New Sale Price $119.00
You save $80.99!

Availability: In Stock
Product Code: 775W-1215


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Product Description Product Dimensions

VOLT® 75 Watt 12 & 15v Multi-Tap Transformer

Download the Transformer Quick Start Quide PDF

Volt's® 12 &15v Landscape Lighting Transformers feature top of line internal and external components for professional results and commercial reliability. Truly the perfect solution for all your low voltage landscape lighting needs. The extremely reliable, efficient, and quiet magnetic core can easily last for 20+ years. The core of the transformer also runs 10-20°C cooler than your conventional laminated magnetic transformers, its approved for indoor mounting! The solid stainless steel body further ensures the longevity of this transformer as well as a rust deterrent. Our 12-15 volt taps make it easy to adjust your voltage output to an optimal level for your light fixtures. Convenient stainless steel mounting bracket, removable door, and removable lower plate make installation an easy process. Built in mechanical timer allows for easy system programming.Optional photocell receptacle allow your transformer to be fully programmed to daylight scheduling. We understand that wiring can be difficult on a transformer with a very small body cavity, giving you little room to work with. Our VOLT® 12 & 15 Volt Multi-Tap Transformers feature approximately 35% larger openings that allow you to easily organize your incoming lines and make connections without hassle. Easily one of the best low voltage transformers on the market. Don't settle on any lesser quality! Order your commercial grade quality low voltage transformer today from VOLT®

VOLTPro 1200 Watt 12-22v Multi-Tap Transformer

Magnetic Transformers vs Electronic Transformers

Magnetic transformers use two coils, a primary coil and a secondary coil, to reduce the voltage from 120 volt down to 12 volts. The primary coil carries the line voltage (110 v or 120 v). The flow of electricity through the primary coil induces a magnetic field that creates a current in the secondary coil. Since the secondary coil has fewer windings, it has a low voltage. The size of the secondary coil or windings determines the voltage output of the transformer.

With-in magnetic transformers there are two types of coils or windings: laminated/stacked cores or toroidal cores. Laminated or stacked windings have sheets wrapped in copper wire that are then stacked or laminated together to make a core. This is the more common, less expensive method for manufacturing a core. Toroidal cores are one solid unit shaped like a donut and have the windings wrapped around the donut, in and out of the donut hole. Toroidal cores are more efficient, don't buzz and rattle, run cooler but are more expensive to make.

In either case, laminated cores and magnetic transformers use a lot of copper windings, are very heavy and expensive. However they are the much more reliable, quieter and the only real solution for an outdoor lighting solution.

Electronic Transformers use an inverter to change the frequency of the electricity form 50 Hz to about 20,000 Hz. By not using bulky and heavy copper windings, electronic transformers can be very small, light and inexpensive. As such they can even be incorporated into the lighting fixtures themselves. All transformers that are small, light or built into a fixture are electronic. The downside is they have short life spans and can be noisy. For example you are probably familiar with the florescent light that takes a long time to come on or that florescent fixture that has failed-- that is usually the result of the electronic transformer in the ballast failing-- a very common occurrence. Additionally they cannot take as high loads and their performance is effected by heat. They hotter the operate or their operating environment, the shorter their life span. Electronic transformers will not perform well in hot environments.

In short magnetic and electronic transformers use two different technologies to lower the voltage-- one is inexpensive but unreliable, the other is heavy duty but bulkier and more expensive.

ETL Listed, Lifetime Warranty. Don't forget to order a timer or photocell for automatic operation BEST TRANSFORMER ON THE MARKET

VOLT® 75 Watt 12 & 15v Multi-Tap Transformer Features:

  • Stainless steel case
  • Built-in stainless steel mounting bracket
  • 75W Cabinet measures: Length 8.5" Width 3.6" Height 4.3"
  • 75W Weight: 4 lbs
  • Input Voltage: 120V A/C
  • Output Voltage: 12v and 15v A/C
  • Premium components, windings, primary and secondary circuits.
  • Latest technology -- Magnetic CORE transformer
  • Low voltage transformer designed specifically for outdoor lighting and landscape lighting professionals.
  • Ensures lights are all bright and even for professional results.
  • Built in mechanical timer.
  • Photocell ready port (photocell not included)
  • Only draws as much electricity as needed to illuminate the bulbs you have -- e.g. a 75w transformer will only draw 40w of power if you only have 40 watts of bulbs hooked to it. The 75w refers to the maximum wattage you can hook up to it
  • Includes a 5 1/2ft line voltage power supply cord. Not designed to be hardwired or for use with an extension cord, doing so will void any warranties
  • Warranty: Core & Housing - Lifetime | Other Electrical Components - 5 years

Operating Temperatures:

The VOLTŹ® Magnetic Core Transformers run 10-20C cooler than laminated core transformers. They are more efficient, use less energy, last longer, and are more reliable. They are also approved for mounting indoors as well. Below is the normal operating temperatures of our transformers:

The VOLT® transformers are manufactured with thermal protection on the primary, they will automcatically shut down when over-heated.

    Transformer Instructions

    Quick Start


    1. The transformer plugs into an exterior GFI outlet. Do not use extension cords with transformers.

    2.Each 300w circuit has its own circuit breaker (toggle switch) and Common (Black label that says COM). E.g. a 300w transformer has 1 COMMON TERMINAL, 600w transformers have 2 COMMON TERMINALS, 900w transformers have 3 COMMON TERMINALS, a 1200w transformer has 4 300w COMMON TERMINALS.

    3.Use COMMON TERMINAL #1 until you begin to approach 300 watts of lamps used (for example when you reach 250-275 watts), then start using COMMON #2, and so on.

    Connecting Home Runs to the transformer:

    1. The home run cable (e.g. 10/2 or 12/2) has two wires. One wire gets connected to the COMMON TERMINAL (black label that says COM), the other wire connects to a VOLTAGE TERMINAL (the colored labels that say 12, 13,14, etc). Which VOLTAGE TERMINAL you connect that particular wire on depends on the voltage you need for that run. This is a MULTI-TAP transformer, which means you can output at a variety of voltages to compensate for VOLT DROP (see our learning area for more information on layouts and voltage drop). For example, if you have a long run of 100 feet you may need to use the 15v VOLTAGE TERMINAL in order to have 12v of power all the way out at the far away fixtures.

    2.You can hook up multiple home runs to each and any of the terminals. For example you may have 6 home runs, in which case you would have 6 wires in the same COM terminal and the other half of the 10-2 wires go into the colored terminals. The VOLTAGE TERMINALS can have multiple runs/wires in each tap as well.

    3.To connect a home run wire to the terminals, split the 10-2 or 12-2 wire down the middle to separate the two wires and strip half an inch of insulation off each wire. One end goes in the COM terminal, the other into a voltage terminal. Loosen the terminal screws (small flat head screw driver) and insert the wire into the terminal opening which is located at the bottom (90 degrees from the terminal screw facing the bottom of the transformer). Tighten screw to secure wire(s).


    1. Low voltage wire does not have polarity, it does not matter which of the 2 wire connects to the COMMON TERMINAL and which to the VOLTAGE TERMINAL, as long as one wire goes to each.

    2.Optional timers and photocells plug right into the transformer ports labeled and located inside the cabinet.

    3.It is easier to see and insert the wires into their terminals when the transformer is lying on the ground. Affix all your wires BEFORE mounting the transformer.

    VOLT Outdoor Lighting Transformer Troubleshooting


    1.First check that there is power at the GFI outlet. Do not assume there is power. Check it with a Voltmeter and make sure there is ~120v AC.

    2.If you have a timer please unplug/remove it. They are often a source of failure. Test the Timer Outlet inside the transformer cabinet with a Voltmeter. You should have 120v AC there as well. If you do, go ahead and plug the timer receptacle cord back into the timer receptacle outlet (the short cord inside the transformer cabinet needs to be plugged into the socket inside the cabinet) to complete the circuit or the transformer will not operate.

    3.If you have a photocell installed, please remove it. Then put the jumper cable back into the photocell receptacle port to complete the circuit or the transformer will not operate. Be sure the jumper is pushed down tight. If you have a photocell in the transformer will not turn on when it is light out. Even if you cover up the photocell there is a delay (the photocell needs to be covered for about 1 minute before it will allow the transformer to turn on).

    4.Make sure all the toggle switches are in the “ON” position (UP). The toggle switches are circuit breakers and can trip if there is a surge, overload or short. Sometimes the circuit breakers themselves can fail.

    5.Now it’s time to test the secondary side (low voltage taps/ mutitap). Do not use the screws facing forward to test for voltage, put a voltmeter in the “garage door style opening” that hold the cable (on the underneath side of the outdoor transformer). Put one voltmeter prong on the common, the other on a tap (eg 12v tap or 15v tap). You should read anywhere from 12v AC to 22V AC depending on which tap you are testing. If you do not get any voltage, remove any wires (home run wires) from the common and the taps you are testing and try again without any load.

    If you are not getting voltage at any of these points:

    a. The Timer Receptacle Outlet

    b.The Secondary Side (low voltage Taps/Commons).

    Call Landscape Lighting World for further assistance (813) 978-3700 and let us know you have gone through the “5 Point Transformer Troubleshooting Checklist.”


  • Most customers receive their items in less than 48 hours!
  • Orders received before 5pm (M-F) ship same-day (details below).
  • Saturday delivery standard to most residential locations.

FedEx Ground Map


We offer residential delivery on Saturdays to most locations at no additional cost. Most residential deliveries scheduled to arrive on a Monday will now arrive 2 days earlier on Saturday! (For example: Order before 5pm on a Friday and, if you live in a location that would typically receive ground orders in 1 day, you would receive your order on Saturday.)

***To make sure Saturday delivery is available to your ZIP Code contact FedEx by calling 800-GoFedEx before placing your order.


Our multiple shipping facilities eliminate the need to pay extra for express shipping under most circumstances. However, FedEx Overnight® and 2Day® shipping is still available and can be selected at checkout for customers needing their items sooner than standard FedEx Ground can deliver (see map above for details). All Overnight® or 2Day® orders must be received before 5pm EST regardless of shipping destination.


We require $1,000 USD order minimum (before shipping charges) on first time orders and a $500 USD order minimum (before shipping charges) on all future orders with an established account. The recipient of an international shipment is responsible for any import taxes, duties, and any additional fees levied by the destination country. We have no control over these charges and cannot predict these costs. Customs policies vary widely from country to country. Contact your local customs office for further information. When custom clearance procedures are required it can cause further delays in shipment. Due to high shipping costs/duties, international customers are responsible for shipping on warrantied replacements, returns, and/or exchanges.


If there is a discrepancy with your order that is deemed to be caused by VOLT® (e.g., wrong item or quantity, or defective), VOLT® will pay for any shipping costs associated with order resolution. Shipping costs associated with the exchange of items accurately delivered by VOLT® are the sole responsibility of the customer. For details on returns and exchanges, please see our Returns Policy Page.


Many of our products are made of heavy-duty materials and as a result weigh a lot. Weight is the primary factor in estimating shipping charges calculated by FedEx, and with larger orders, weight can total hundreds of pounds. To help offset some of this cost, we pass on our high-volume FedEx discount to you.

Lifetime Warranty

Low Voltage Transformer Warranty Information

    Stainless Steel Housing - Lifetime
    Magnetic Core - Lifetime
    Other Integrated Electrical Components - 5 Years
    Non-Integrated Photo Cells, Digital Timers & Mechanical Timers - 1 Year

    Stainless Steel Housing - Lifetime
    Magnetic Core - Lifetime
    Other Integrated Electrical Components - 5 Years
    Non-Integrated Photo Cells, Digital Timers & Mechanical Timers - 1 Year

Complete VOLT® Warranty Info Click HERE

For more information or to arrange warranty replacement of your VOLT® Low Voltage Transformer: 813-978-3700 Monday - Friday from 8am to 8pm EST, Saturday and Sunday from 10am to 6pm EST.

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Average Customer Review: 4.5 of 5 | Total Reviews: 12 Write a review.

  0 of 0 people found the following review helpful:
Highest Quality March 26, 2015
Reviewer: Mr S from Banning, CA United States  
Was very surprised at the extreme high quality of this transformer. The extra 15V tap for maximum output for LED purposes was a surprise. The timer design eliminated the standard clips that have to be moved about on other transformers. Well done VOLT.

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  0 of 0 people found the following review helpful:
Great transformer February 1, 2015
Reviewer: Melinda Hunter from Las Vegas, NV  
Great product, this transformer was easy to install and powers my Volt landscape lights perfectly.  I highly recommend Volt lighting products!

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  0 of 0 people found the following review helpful:
High quality January 25, 2015
Reviewer: Jason, Dallas TX  
I purchased this unit about a year ago for pool stone and landscape lighting accents.  We are very happy with its performance.  Knowing the sensitivity with the timer, we chose to plug it into the pool equipment circuit which we have a short term battery backup built in.  With that, power flickers and even mild disruptions don't bother it a bit.

We'll built, strong unit.  Ours is outdoors in the elements and looks like new.  Good job volt.

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  0 of 0 people found the following review helpful:
Poor timer December 29, 2014
Reviewer: Mark from Lake jackson, tx  
The mechanical timer is very sensitive to power interuptions.  Every time we have a short power flicker the timer quits.  Volts answer is that you have to unplug it, turn it and reset it.  That makes it work again, but it is a pain as we have many very short power flickers.

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  0 of 0 people found the following review helpful:
Be careful of the punch outs December 4, 2014
Reviewer: Daniel Gaul from Baltimore, Maryland  
Terse review due to 1000 char limit.

I actually purchased 300 and 900 Watt 12-15V but providing info that may apply here as well.

On main web pag, click "How to Center" link under "Help", find the "Low Voltage Layout Guide" link to get to the voltage drop formula and chart.  Using this chart I was able to determine that I could use a 12 - 15V instead of the more expensive 15 - 22V transformer.

As other reviewers, when I mounted the photo sensor - the knuckle broke.  I managed to fix it.

The transformer boxes have a punch out on the side for the photo cell as well as several at the bottom for wiring (of if the photo cell extension cable).  All of the punch outs are in reality a punch out within a punch out.  The inner is 1/2 inch.  The outer is 3/4 inch.  The photo sensor is 1/2 inch when mounting on the box.  Remove the inner punch out very carefully or it will pull the outer one with it.

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