Home
Inspiration
Choosing the Right Transformer: How to Calculate the Required Wattage

Choosing the Right Transformer: How to Calculate the Required Wattage

Blog

A transformer is the foundation of a 12V garden lighting system. Without a transformer, the lights simply won’t work. The transformer converts the 230-volt mains voltage to a safe 12-volt voltage. This allows you to use your garden lighting safely and reliably. In addition, the system is easy to expand. In this blog, you’ll learn which transformer is best for your needs: the 24-watt model, the 100-watt model, the 150-watt model, or perhaps a combination of transformers.

Summary

When choosing a transformer, start by calculating the total wattage of all lights and connected accessories. By then adding a safety margin, you’ll prevent overloading and leave room to expand the system later. This way, you’ll always choose a transformer that fits your lighting plan.

How to Calculate the Required Wattage

Calculating the correct wattage is easier than most people think:

First, add up the wattage of all the lights and accessories. For example, if you’re installing eight 5-watt lights, that comes to a total of 40 watts.
Next, choose a transformer rated for more than 40 watts, allowing for a margin of about 20 to 30 percent excess capacity. This prevents the transformer from running at maximum capacity all the time. It also leaves room to add extra lighting later.

In the example above, the 100-watt transformer is a good choice.

Which transformer is right for your project?

For a small garden with just a few light fixtures, a compact model is often sufficient. For a medium-sized garden with multiple spotlights, wall sconces, and mood lighting, a transformer with higher power is the best choice.

Are you working on an extensive lighting plan with many fixtures? Then the powerful Touch transformers are a good solution. These also feature a built-in light sensor and timer function, which automatically turns the lights on and off.

Common Mistakes

The most common mistake is choosing a transformer with insufficient capacity. As a result, the system cannot provide enough power when all the lights are on. People also often forget to allow for a safety margin. This may not seem like a problem at first, but if you add extra lights later, you’ll still have to replace the transformer.

What should you keep in mind?

In addition to selecting the right transformer, don’t forget about the necessary cables and accessories for garden lighting. Together, these components ensure a reliable and well-organized system.

Choose the right foundation for your lighting plan

A good lighting plan starts with a transformer that matches the total power of the installation. Therefore, check in advance which transformers are suitable for your situation and take future expansions into account.

Use the configurator to put together a complete lighting plan, or contact us if you’d like advice on making the right choice. That way, you can be sure your lighting is safe, reliable, and ready for the future.