Solutions to LED Lights Causing TV or Radio Interference

We're big fans of LED lighting here at Reduction Revolution.

Over the last few years, we've sold hundreds of thousands of LED lights from quality brands like Philips, Osram and Verbatim.

In the vast majority of cases, LED lights do what they're meant to. They provide better lighting using up to 90% less energy. Occasionally, our customers do encounter a problem. One such problem is radio or TV interference.

Some customers have reported this interference on their TV or radio after upgrading MR16 downlights to LED. This only happens when the lights are switched on, but it can be annoying, especially if you enjoy AM radio! Apparently it can also happen with the mains voltage LED lamps, although we have not experienced this.

How To Fix Radio Interference from LED Lights

Here is a list of possible solutions that we are aware of:

  1. Use a quality LED bulb. All of our LED light bulbs are fully compliant with the relevant standards. Many LED lights from cheaper or no-name brands are not compliant.
  2. Change the transformer to one with better EMI suppression, such as our Verbatim LED transformer.
  3. Shorten the cable length, and if possible use a shielded cable.
  4. Add an EMI filter at the input / output of the transformer. These are also called ferrite beads or ferrite chokes.

Item 2 above is only suitable for low voltage LED lights. The other suggestions can also be used on mains voltage LED light bulbs.

Understanding RF / EMF Radio Interference

As some further background, let's clarify some of the terms used and how this all works.

  • RF - Radio Frequency
  • EMF - Electromagnetic Frequency
  • Transformer - Converts mains voltage (240V AC) into low voltage (12V).

Philips MR16 LED RF Interference

Important: The LED lamp is not the only, and not necessarily the most dominant, cause of radio interference. The full system must be considered.

Electromagnetic Compatibility (EMC)

All Philips LED bulbs (and other reputable brands) have full EMC compliance. This testing is normally conducted by third parties to EMC standard CISPR15.

Electromagnetic Interference (EMI) - Disturbance Source 

This refers to the device emitting electromagnetic energy (the source of the radio interference). In the case of LED lighting this could be:

  • LED light bulb or globe
  • Ballast
  • Transformer

Coupling Path - Conduction & Radiation

This refers to the interaction between the 'source' and the 'victim.' In the case of LED lighting it could be:

  • Light fitting or 'luminaire'
  • Cable
  • Ceiling

Electromagnetic Susceptibility (EMS) - Susceptible Item

This refers to the item that may be affected by the above radio interference and may include:

  • AM or Digital Radio
  • TV
  • Computer

Looking for Quality LED Lights? Browse our full range here.

By Ryan McCarthy |

Know someone who might be interested?
Share this article:


next post → ← older post

Got a Question?

stop sign

Please see our FAQ, delivery, pricing, and product pages for commonly asked questions and answers.


About Reduction Revolution

Reduction Revolution is a business focused on energy efficiency and sustainability. Our products will help slash your energy usage. But they also often improve comfort, save time, and reduce your maintenance costs. That's why we say waste less, live better.

Australia New Zealand Map

Reduction Revolution Pty Ltd is an Australian owned and operated business (ABN 74 141 672 764).

Since 2010 we have supplied tens of thousands of customers across Australia & NZ.

Click the links below to find out more:

About Us
Blog Posts - Frequently Asked Questions - Delivery Details - Discounts & Wholesale - Warranty & Returns - Contact - Search

Meters & Monitors
Power Meters - Energy Monitors - Thermal Imaging - Thermometers - Water Monitor - Light Meter

LED Lighting
Downlights - Light Bulbs - Filament Bulbs - LED Tubes - Oyster Lights - Strip Lights - Batten Lights - Panels / Troffers - High Bays - Motion Sensors - Floodlights - Emergency Lights

Energy Savers
Heating & Cooling - Hot Water - Cooking - Standby & Control - Pool Pumps - Portable Power

Read Our Customer Reviews!

Latest Blog Posts

  • How to Install an Energy Monitor If You Have Solar Power

    To get the most out of your solar panels it's critical that you understand your energy usage. Many people who fail to monitor their energy usage end up with high electricity bills, even if they have solar power installed. We sell several... read more

  • How Much Power a Fridge Uses - in Watts, Cost & kWh

    Domestic fridge power consumption is typically between 100 and 250 watts. Over a full day, a fridge is likely to use between 1 to 2 kilowatt-hours (kWh). This translates into a running cost of about $150 per year per fridge. Before you think "okay great... read more

  • Top 10 Causes of (& Solutions to) High Electricity Bills

    If you've received a high electricity bill or gas bill you can end up feeling pretty helpless. I've spoken to many people over the years who think their high electricity bill was caused by: an electricity leak, a faulty appliance, an... read more