[Solved] Humming/Buzzing Noise in Philips LED GU10 CorePro 4000K 4.6W Bulbs: Causes & Solutions

I have 5 LED bulbs "Philips GU10 CorePro 4000K 4,6W = 50W, 36st" in the set. When you turn on the lights, you hear a humming / buzzing noise from three bulbs.

I replaced these three bulbs with new ones, but it didn't help. After removing a particular bulb, I have the impression that the buzzing still occurs in the same place. With these three bulbs out, everything is fine.

Anyone have an idea how to fix it / what is the cause of the problem? After all, this installation is just cables and bulbs.

icarotka wrote:

After all, this installation is just cables and bulbs.

Or maybe a power supply? You have not specified what voltage you have these LEDs for.

brofran wrote:

maybe a power supply? You have not specified what voltage you have these LEDs for.

230. There is no power adapter or anything else in the middle.

icarotka wrote:

mounting 5 LED bulbs "Philips GU10

Change to another company. I have some cheap Chinese and I am not humming.

Measure the frequency. Do you live far from a transformer?

brofran wrote:

Change to another company. I have some cheap Chinese and I am not humming.

Somehow I did not want to believe in this solution, but I dismantled the more expensive Philips and bought some cheapest Chinese Diall from Castorama. And as he took his hand, everything works and is perfectly quiet. What a world Thanks!

maziar1000 wrote:

Measure the frequency. Do you live far from a transformer?

I bought a meter specially for this purpose, but since the method above worked, I didn't even measure it. An apartment in a new block (I don't know where exactly the transformer is).