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A Head LED Light That Was Flickering Repaired And Maintained

By on June 25, 2023
A Head LED Light That Was Flickering Repaired And Maintained







A man brought this Head LED light for repair. The customer said that this LED light is being used by his wife when doing the nails or her customers. Recently, the Light started to flicker every time the cable was moved or shacked.

led light repair

Sorry I forgot to take a photo of the whole set but this is the main battery that the LED light runs on.

The green standby is on and I was able test the out for which about 12 DC volts. So the main problem is not in this part of the device.

fixing led light

These are the main wires connections that come directly from the main battery that supplies 12 volts to the LED light.

There were voltages there and when I moved or shock the cable the light flickered which indicating a problem in the cable itself.

cable issue

I de soldered the whole cable off the tiny board and when I checked for continuity  the positive side of the cable did not test good so I got a new cable and soldered it in place.

fixing led light

I had a cable in the shop ready to go for such a device. It has the plug already attached to it. All I have to do is solder the two ends of this cable to the board of the LED light.

led light pick up

Once I soldered the cable and powered on the LED light, it came on bright and steady this time. So it was time to put everything back and call the customer for pick up.

how to fix an led light

I had the Light zoomed out all the way so I can take a photo of it. It was working fine; the customer came for pick up and was very happy with the outcome.

Mission accomplished.

waleed Rishmawi

This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.

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Note: You can check his previous article on LED Strips Replacement On A TV. Model: LG 32LN510Y-TA




  1. Parasuraman S

    June 25, 2023 at 8:06 am

    Very different from your usual welding machine service! Good fix! Thanks for sharing!

  2. Albert van Bemmelen

    June 25, 2023 at 2:37 pm

    This fixed CREE HJD-A3 Led light compared to many other Led lights seen has a decent metal cooling base that most likely will extend its life span.

    • Henrique J. G. Ulbrich

      June 25, 2023 at 11:36 pm

      I agree, Albert. I became annoyed when I deal with LED devices that had small metal cooling area. And worse: with few or inexistent thermal paste. Sometimes, the thermal paste is dry. Programmed obsolescence, of course. When I do service on these devices, I always remove old thermal paste and apply a new one, in the necessary quantity. It´s a guarantee that the device will operate for more time.

    • Waleed Rishmawi

      June 26, 2023 at 6:27 pm

      Ablert: yes, the cooling is really good on that but the cable was not therefore it was replaced. have a blessed day

  3. Raj

    June 26, 2023 at 10:47 am

    Thanks for sharing

    • Waleed Rishmawi

      June 29, 2023 at 4:21 pm

      Raj: you are most welcome. have a blessed day

  4. Waleed Rishmawi

    June 26, 2023 at 6:26 pm

    Parasuraman: yes but I take what comes my way. have a blessed day

  5. Yogesh Panchal

    June 27, 2023 at 10:54 pm

    Good Job! Waleed.

    • Waleed Rishmawi

      June 29, 2023 at 4:21 pm

      Yogesh: thanks man. have a blesseday


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