Ban the Buzz From LEDs — Blog

The buzzing sound from your LED light bulbs may be the result of electromagnetic interference from a nearby appliance such as a microwave oven. If the sound only happens while the microwave is in use, there’s unfortunately not a lot you can do about it. But if the sound occurs when the light is hooked up to a dimmer, make sure you are using the right dimmer. Not all dimmable LED bulbs are compatible with all LED dimmer switches. To ensure that your bulbs and dimmer controls are compatible, check the lamp’s manufacturer spec sheet or dimmer compatibility sheet, available on the product pages of Using the proper dimmer can not only ban the buzz, but it can also extend the life of your LED bulbs. Keep in mind that specific dimmer compatibility information will always be with the bulbs rather than with the dimmer.

If you’re using LEDs that have a separate driver, the buzz could be happening because of an incorrect driver. Make sure you have the right driver for your LED and replace it if it isn’t compatible. Also, consider replacing the driver if it’s been a while.

Consistency is best in fixtures with multiple LED bulbs, so use the same brand and wattage in each fitting—and don’t mix LEDs with incandescent bulbs. Check the total wattage requirement for the fixture to be sure you’re not exceeding the maximum range for the circuit.

Loose screws or bulbs in fixtures can also cause a myriad of noises. Fortunately, those are easy fixes; just check the supports on the fixture and the bulb’s security in the socket. Tighten everything down and you could be resting soundly!

There’s one—slightly more dangerous—reason that your LED bulbs might buzz. There may be an electrical short in the line. If you think that might be the problem, enlist the help of a professional electrician.

Innovations are happening all the time in LED technology. Newer, high-performance bulbs are designed for quieter operation, higher efficiency, and improved light rendering. If your LEDs are more than a few years old, check out what’s new, including products by Cree and Sylvania.

Buzzed by Incandescents or Fluorescents?

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