7 Best 600 Watt Low Voltage Transformer For Outdoor Landscape Lighting 2024

600watt transformer

Taking a 600-watt low voltage transformer as an example, have you ever thought of what the watt rating on your transformer means?

From basic knowledge of science and tech, you might recall that watt is the unit of power.

Also, the transformer can be regarded as an electrical device that either step-up or step-down voltage.

Transformers also exchange voltages for current at a constant power rating.

Is it already sounding confusing?

Just relax!

We will be taking our time to explain the whole transformer concept while using the 600 Watt low voltage transformer as a case study.

We will also be defining the 600-watt low voltage transformer, its practical applications, and how to connect one.

Let’s get to it!

What is a 600 Watt Low Voltage Transformer?

landscape lighting transformers

Before explaining the 600-watt low voltage transformer, we need to first understand what we mean by low voltage transformers.

As the name implies, low voltage transformers are the type that converts the high voltage feed into a low voltage that is safe for use in major appliances.

The truth is that these household appliances are often preconditioned to operate within a specific range of voltage and frequency.

However, voltage and frequency vary from place to place. So, there is a need for a safety device that regulates this incoming voltage source to the required voltage for an appliance’s proper functioning.

These regulators are called transformers. The transformer types that ensure that high incoming voltage sources are stepped down are called the low voltage transformers.

However, transformers are devices too and should have their capacity ratings. We can refer to this rating as the power of the transformer.

Power is measured in Watts or Volt Ampere (VA). In some cases, kVA or kW is used.

This VA (Volt-Ampere) rating is the number of volts (VA) that is used per 1 ampere (A). So, 1 VA = 1 Watt.

Therefore, a 600W transformer handles a ratio of 600 volts to 1 ampere of current. It’s a ratio, and the current may not be 1A. The multiplication of voltage and current (Ampere) must always be equal to 600 in this case.

Hence, we can now define a 600-watt low voltage transformer as “the transformer type that ensures the constant supply of low voltage at a power of 600 Watts.”

Is 600 Watt Low Voltage Transformer Perfect for Outdoor Lighting?

Outdoor Landscape Lighting

The simple answer to this question is a YES and a NO.

Yes, because it depends on the power of the LED lightings, and NO because it is a general question that does not have a fixed answer.

As we have earlier discussed, a 600-watt low voltage transformer has a maximum power of 600 watts (600VA).

Hence, the corresponding transformer choice depends on the total wattage of LED lights that are being considered.

Using too many LEDs should be avoided as it forces the transformer to perform beyond recommended conditions.

The transformer gets hot and gets damaged eventually.

How many LED Landscape Lights work with a 600-Watt Transformer?

The number of LED landscape lights that you can connect to your 600-watt transformer depends on your transformer wattage or power rating and the type of low voltage transformer.

Firstly, the minimum and maximum transformer wattage ratings will determine the smallest or highest number of watts that suits the transformer.

Also, the transformer type can either be electronic or magnetic. The electronic transformers are quiet and take a lesser maximum power of around 300 watts.

Besides, the total wattage (power) of LED lights connected to the electronic transformer can be less than or equal to the maximum transformer power rating.

On the other hand, magnetic transformers have a higher maximum power rating of 1200 watts.

The total power of connected LED lights should not exceed the recommended 80% of the total transformer wattage.

To answer the main question, we will have to use a magnetic transformer because of the transformer’s power rating of 600 watts.

Assuming each LED light is about 60 watts, the number of LED lights will then be 600/60 = 10 LED lights.

Top 3 Best 600 Watt Low Voltage Transformer

01. Malibu 600 Watt Transformer

Malibu 600 Watt Transformer


One of the best 600 watt low voltage transformers that step down 120V electricity to a safe 12V for household use.

It is also designed with a sensor photocell and has a weather shield to guard against moisture through the terminal outlets.

Although it is a bit heavy (33.5pounds), you can be sure that it is quality. The good thing about this transformer is that it has been built to allow you to set it up yourself. This outdoor transformer comes with a 1-year warranty.

02. 600 Watts Lightkiwi Low Voltage Transformer

600 Watts Lightkiwi Low Voltage Transformer


Sold by Lightkiwi stores, this 600 watt low voltage transformer is built to step down incoming AC electricity of 120V to a range of (12-15)V AC.

The recommended maximum load is 70% of the maximum transformer wattage.

Besides, this heavy-duty transformer offers itself dual protection using automatic and magnetic circuit breakers for the transformer’s primary and secondary sides, respectively.

However, there is no timer or photocell except you get it yourself. You will also have to contact the seller yourself to get warranty information.

03. 600 Watts Best Pro Lighting Low Voltage Transformer

600 Watts Best Pro Lighting Low Voltage Transformer


Manufactured by Best Pro Lightning, this 600-watt low voltage transformer is designed to step down input AC electricity of 120V to (12-15) V AC safe for domestic home appliances.

One good thing here is that this transformer comes with a photocell and timer. Warranty information is not stated clearly here, but it was written somewhere that it has a lifetime warranty.

How to Connect 600 Watt Low Voltage Transformer?

First, we recommend that you hand over the connection job of the 600-watt low voltage transformer to a professional.

The professional has made several such connections and already knows what errors to avoid.

However, if you’re a DIY type of person, the following are steps you should follow.

  • Locate a residual current device (RCD) that will serve as the connection point between your home and the LED lights. The RCD will act as a protector to shut down the circuit in case any problem occurs.
  • Ensure your transformer is also located near an RCD source to serve as protection too.
  • Cover all connection outlets to prevent moisture or the negative effect of weather.
  • Check your manual to verify that you’re using the right set of cables for connection.
  • Install and examine the LED landscape lights. Remember to recheck all connection wires.
  • Test the transformer before covering the wires underground.

How to Test a Low Voltage 600-Watt Transformer?

The following should be done after connecting your 600-watt low voltage transformer.

  • Turn off the power for the whole connection and use a digital multimeter to measure the voltage readings. Do this by connecting the leads of your multimeter to the circuit input lines.
  • Turn on the power and verify the voltage input to the transformer. The reading should not be lower than 80% of the expected values.
  • Repeat the previous step for the transformer secondary terminals.

600 Watt Low Voltage Transformer Problems & Troubleshoot

The following are some of the common problems you might experience with your LED lighting.

  1. Only Some Lights Work

  • Test the LED bulbs for possible burnouts.
  • Check the landscape cable to transformer connection.
  1. All of the LED lights refuse to work

  • Make sure the transformer is turned on.
  • Ensure firmness of all connection terminals.
  1. LED lights are coming on during the day

  • The photocell was likely positioned to face a lightning source.
  1. LED lights do not come at night

  • Change the photocell position. It has too much lighting at nigh

How to Test for Power in 600 Watt Low Voltage Transformer that has Photocell?

Using a Photocell

In this section, we will discuss how to test for power through a transformer with a photocell.

  • Simulate nighttime by covering the photo eye of the photocell with black electrical tape.
  • Next, rotate the timer counterclockwise to turn it on.
  • Remember to also turn on the voltmeter and connect the two lead probes to the circuit table. This first point of connection is our voltage tap 1 (at 11volts).
  • Repeat the step above and take readings of voltage tap for 12 volts, 13 volts, and 14 volts
  • Obtaining corresponding readings of 11 volts, 12 volts, and so on with tolerances of +/-0.5 for each tap will indicate the transformer is working correctly.
  • If you notice LED lights are not working despite obtaining readings at each voltage tap, then the circuit cables may be bad. The LED lights might be damaged as well.
  • If the transformer is getting proper voltage but not working, it could be the timer.

How to Connect Hampton Bay 600 Watt Low Voltage Transformer?

Follow our step-by-step guide to properly connect or install that Hampton 600 watt transformer. You can also check out the Hampton Bay manual to help you out.

  • Carefully split the copper wires in the landscape cable insulation. Then, peel off about 0.5inches of the insulation from each wire and twist the ends.
  • Insert one end of the wires in the transformer clamping plate labeled COM. Firmly screw it.
  • Fix the other end in the clamping plate of 12v or 15v.
  • Place your fixtures where you plan to install them. Ensure the total rating is not more than 600 watts.
  • Attach the fixtures to the cable using cable connectors and turn on the transformer.
  • Mount your Hampton transformer on the wall using screws.
  • Also, mount the photocell bracket on a wall using screws and ensure it is not pointing at possible night light sources.
  • Adjust the position of the photocell until the transformer lightens up at the desired level.

After successful installation, you can watch this video below to know more about operating the transformer.


What are the differences between low voltage transformers and high voltage transformers?

Low voltage transformers are the transformers that step down high incoming voltage (of let’s say 240V) to a lower value (let’s say 12V) considered safe for the used appliances.

For the high voltage transformers, we will say they are the transformers that step-up voltage usually across long-distance power lines.

They are also used in industrial machines with voltage ranges as high as 600 – 5000 volts.

How Can I Calculate the Correct Wattage Rating for my appliance?

To calculate the correct wattage rating for your appliance, you need to follow these steps:

  1. Check the label: The wattage rating should be printed on the label of your appliance. If you can’t find it on the label, check the owner’s manual or contact the manufacturer.
  2. Calculate the wattage: If the label only lists the amperage and voltage, you can calculate the wattage by multiplying the amperage by the voltage (Watts = Amps x Volts). For example, if the appliance uses 5 amps and 120 volts, the wattage is 600 watts (5 amps x 120 volts = 600 watts).
  3. Consider the circuit: Make sure that the wattage of your appliance is compatible with the circuit it will be connected to. Check the circuit breaker or fuse that controls the outlet you will be using. The wattage of the appliance should not exceed the rating of the circuit.
  4. Allow for a safety margin: It’s always a good idea to allow for a safety margin when choosing the wattage rating for your appliance. This will help prevent overloading the circuit and reduce the risk of electrical fires. As a general rule, add 20% to the wattage rating of your appliance to determine the minimum wattage rating of the circuit it should be connected to.

How many appliances can I use at once on my voltage transformers?

The number of appliances you can use at once on your voltage transformer depends on several factors, including the wattage rating of the transformer, the total wattage of the appliances, and the capacity of the electrical circuit the transformer is connected to.

To determine how many appliances you can use at once on your voltage transformer, you need to:

  1. Check the wattage rating of the voltage transformer: This should be printed on the label of the transformer or in the owner’s manual.
  2. Determine the total wattage of the appliances you want to use: Add up the wattage ratings of all the appliances you plan to use at the same time.
  3. Make sure the total wattage of the appliances does not exceed the wattage rating of the transformer: The total wattage of the appliances should be equal to or less than the wattage rating of the transformer to avoid overloading it.
  4. Check the capacity of the electrical circuit the transformer is connected to: The electrical circuit should be capable of handling the total wattage of the appliances plus the wattage of the transformer.

As a general rule, it’s a good idea to allow for a safety margin when using voltage transformers. You should not use more than 80% of the transformer’s wattage rating and should avoid using high-wattage appliances such as hair dryers or space heaters on the transformer.

How Do I Determine the right Transformer to use for my LED landscape lighting?

right Transformer to use for my LED landscape lighting

Calculate the sum of the wattages of each light bulb in the LED landscape lighting. For instance, having ten 30-watts light bulbs will give a total of 300 watts. That is total wattage is 300.

Now multiply the value obtained as total wattage by 1.25. The extra value is to account for losses due to cable distance.

So, our final wattage is 300 x 1.25 = 375 watts.

80% of 375 watts gives 300 watts (remember what we said about magnetic transformers?)

Why is my Voltage Transformer Tripping Off?

There are several reasons why a voltage transformer may be tripping off, including:

  1. Overload: If you are using too many appliances or appliances that require too much power, the transformer may overload and trip off. Check the wattage rating of the transformer and the appliances you are using to make sure they are compatible.
  2. Short circuit: A short circuit can occur when a wire carrying electrical current comes into contact with another wire or a conductive surface. This can cause a sudden surge of electrical current, which can trip off the transformer. Check the wiring of the transformer and the appliances to make sure there are no exposed wires or other potential causes of a short circuit.
  3. Ground fault: A ground fault can occur when a wire carrying electrical current comes into contact with a grounded surface or another wire with a different electrical potential. This can cause a sudden surge of electrical current, which can trip off the transformer. Check the wiring of the transformer and the appliances to make sure there are no exposed wires or other potential causes of a ground fault.
  4. Defective transformer: If the transformer is defective, it may trip off even when there is no apparent reason for it. Check the transformer for any signs of damage or wear and tear, and consider replacing it if necessary.
  5. Overheating: If the transformer is overheating, it may trip off to prevent damage or a fire. Check the location of the transformer and make sure it has adequate ventilation and is not placed near any heat sources.


By now, you should have a better understanding of what transformers are, especially low voltage transformers.

Their importance cannot be overemphasized since we need them for the proper functioning of our appliances. You should also be able to connect a 600 Watt low voltage transformer yourself.

Is there any part of the topic that you still do not understand? Check the FAQs below. If the questions persist, you can ask in the comments section.