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Cheap LED fixture flickering like hell!

Cheap LED fixture flickering like hell!


The little LED fixture of the parking flickering like hell, probably it don't have capacitors for cut costs.

IMG_20190707_204006.jpg youtube_wuoKc5HKB2k.jpg youtube_klaLPXxb5fM.jpg IMG_20190707_152108.jpg

Light Information

Light Information

Manufacturer:Generic
Lamp
Lamp Type:LED
Filament/Radiator Type:Light Emmiting Diode
Shape/Finish:Square
Fixture
Location:Santiago, Chile
Electrical
Voltage:Local current 220V AC 50Hz

File information

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Filename:youtube_klaLPXxb5fM.jpg
Album name:Binarix128 / Some accesories and MISC
Keywords:Lanterns
File Size:5052 Bytes
Date added:Jul 07, 2019
Dimensions:480 x 360 pixels
Displayed:33 times
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dor123
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Jul 07, 2019 at 10:15 PM Author: dor123
I don't think this is related to the capacitor, because of the off period of the flickering is longer than with magnetic HID and fluorescents. Also: This don't looks to me like 100hz or 50hz flickering, but a random one.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

halofosfaatti
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Jul 08, 2019 at 02:20 AM Author: halofosfaatti
Frequency seems to be 100 Hz, because there are 3 stripes visible at a time and camera framerate is probably 30 fps. The PSU does not probably have smoothing capacitor. The flicker is probably caused by ripple caused by full bridge rectifier. LEDs are sensitive to voltage changes, because they have specified forward voltage, and therefore they do not produce smooth flicker, but these clear edged stripes with longer periods on camera. Also some PSUs can cause flicker, but the frequency is often much higher.

Too many things are secret. Only open information can really preserve old technology.

I like fluorescent and other conventional lighting and old electronic equipment. Today's things are not made to last.

Binarix128
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220V AC 50Hz


UCOUT2noI2R__jgPSJUjGRtA
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Jul 08, 2019 at 01:48 PM Author: Binarix128

Frequency seems to be 100 Hz, because there are 3 stripes visible at a time and camera framerate is probably 30 fps. The PSU does not probably have smoothing capacitor. The flicker is probably caused by ripple caused by full bridge rectifier. LEDs are sensitive to voltage changes, because they have specified forward voltage, and therefore they do not produce smooth flicker, but these clear edged stripes with longer periods on camera. Also some PSUs can cause flicker, but the frequency is often much higher.

I agree with you! The frequency maybe 100Hz because of the power frequency is 50Hz, and the FBR doubles the frequency because it invert the negative cicle.

-I dont speak English very well. Compact Fluorescent (PL)
-Say NO to incandescent bulbs ban! Incandescent Lamp
-lamp saver Mercury Vapor Lamp

dor123
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Jul 08, 2019 at 09:54 PM Author: dor123
LED however can flicker at a random frequency as well because of manufacturing errors or malfunction.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Binarix128
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Gender: Male
Posts: 109
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220V AC 50Hz


UCOUT2noI2R__jgPSJUjGRtA
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Jul 08, 2019 at 09:59 PM Author: Binarix128

LED however can flicker at a random frequency as well because of manufacturing errors or malfunction.

I agree, the chinnese LED factories need to cut costs and omit some components.

-I dont speak English very well. Compact Fluorescent (PL)
-Say NO to incandescent bulbs ban! Incandescent Lamp
-lamp saver Mercury Vapor Lamp

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