What You Need To Know About Transformers

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Variety of Transformers
There are usually two types of transformer that are used in household lighting. You will need to find out which transformer is used in your home, and its minimum and maximum load, when installing your LED bulbs. These are as follows:

1. Electronic Transformers – All transformers require minimum and maximum load wattage for them to operate. Because LED light bulbs are often very low wattage, a single bulb won’t be enough to get an electronic transformer to work. A good solution for this is wiring a number of LED bulbs together in parallel to create a higher load for the transformer. Newer electronic transformers should have no issues when working with LED bulbs, but older models maybe susceptible to buzzing, flicking or dimming issues. This is usually down to not enough or too much power or load being supplied to the transformer

2. Wirewound Transformers – Wirewound, also known as magnetic transformers, when working with LED bulbs that are 12V compatible, often demonstrate little issues as regards to buzzing, dimming or flicking. However, they are becoming harder to find and replace as they’re being made obsolete by newer electronic transformers.
Why Do We Need to Use Transformers
Because halogen lamps run off alternating current (AC), and LED bulbs run on direct current (DC), a transformer is needed to convert the current into the correct version and to also reduce the mains voltage (V) to the correct value. Mains voltage is often 240V, and LED MR16 bulbs require 12V to power them.
When We Use Transformers, What Kind Of Things Do We Need To Be Noticed
Firstly, you will need to know the wattage of your LED MR16 bulb. You will also need to know the rating of your transformer. This is noted by the letters VA, which stands for volt-ampere.

There is often some confusion caused when replacing halogen bulbs with LED ones. The maximum and minimum loads of a transformer is measured in Watts, which tells you how many and what wattage bulbs the transformer can power.

Because the LED bulbs are more efficient than halogen ones, they use less watts to power themselves. As such, you should look at an LED bulb’s halogen equivalent wattage when replacing halogen bulbs.

Ultimately, if you’re installing LED lighting it is best to also install them with LED specific power supplies such as LED drivers. This ensures that you will have a constant supply of power to the bulbs for excellent light quality. LED drivers can operate with loads as low as 1w depending on the model.

All you have to remember is to total up the wattage of all the bulbs that will be loaded onto the transformer and then ensure that the transformer have the capacity to run the all the bulbs you require. It’s as simple as that.

Click Here to view our full range of LED Transformers. For more information, feel free to contact us via eBay message or call us on 0121 632 2380
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