December 1, 2021

When LED Downlights Flicker and Buzz: Guide to DIY Repair and Replacement

Owing to consuming less energy, LED lights have managed to impress a major segment of the population. Other worth-mentioning benefits include long shelf life, excellent color range, high intensity, and affordability. LED lights are also safer than incandescent bulbs. You do not need to worry about the sudden explosion.

That being said, LED lights may at times have problems. When not addressed right away, they damage the circuit or cause other complications that you may be able to resolve only by spending lots of money. For further details, please go through the rest of the discussion right now.

Flicker

Futuristic lighting creates a first world ambience; thus, almost all modern-day individuals tend to depend on LEDs. But, LEDs flicker, or their brightness goes up and down fast. When the flicker frequency is between 80 and 100 Hz, you can notice it with naked eyes. Prolonged exposure to flickering causes headache, nausea, fatigue, and can trigger epilepsy.

LED lights flicker due to the below-mentioned reasons.

  • Poor Quality- If you purchase excessively cheap LED lights, they are bound to flicker over time. Due to improper soldering, the internal components become loose. Shoddy LED lights also have a bad PCB design that does not catch the current, so there is rapid brightness fluctuation.

The best way to resolve this issue is to rely only on quality LED lights – the ones that are sold by well-known brands. See if the lights have been manufactured through eutectic soldering machinery. This keeps flickering at bay.

  • Loose Wire- If the wires between the circuit and the bulb are loose, you have to encounter flickering. The current is, after all, obstructed after certain periods due to electromagnetic interference. The only way to fix it is to thoroughly check the connection points and replace the wires that have broken or are about to disconnect.
  • Disrupted Power Supply- If you have bought high power LED lights (more than 100W) for a sports background or a backyard, they will flicker over time. Make sure to pay attention to the driver unit. There are multiple brands that assure optimum power supplies.

Buzzing Noise

According to the top electricians, a LED lighting system produces an annoying hum when you end up overloading its circuit. For instance, if the dimmer is meant to support only 300W LEDs, but you have connected over 200W luminaries. Where the hum comes from? It mainly happens when the electronic components inside the light vibrate a lot. The frequency is usually between 100 and 120 HZ.

Buzzing noise from LED lights is a clear sign of abnormality. On hearing it, make sure to inspect the bulb or the lamp and the circuit. This ensures safety. Also, disconnect a few luminaries to see if it improved the problem.

To prevent the problems stated above, make sure the LED downlights are properly installed. While DIY measures do work, sometimes, you are left with no choice other than professional assistance. Please contact the best electrician in your locality. Make sure he/she has a license.