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PostPosted: Sat Oct 28, 2017 11:58 am 
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I know that LED's only work in one direction and therefore AC bulbs tend to be prone to strobing. I'm particularly sensitive to this. If I put one in a table lamp without the shade and wave it around you can literally see the on off flashing. I have tested this out with a number of bulbs (albeit inexpensive LEDs) and they all have the same effect.

I want to fit 12 x 5W LED's into a chandelier designed for E14 bulbs, and wondered if there was a way (perhaps with the use of a capacitor, or other electrical device) to smooth out the flashes to an acceptable level. I know that some of these bulbs have capacitors built into them, but I presume they go into the low voltage side of a step down transformer. Any electrical experts please do advise.

Many thanks, Jon.


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PostPosted: Sat Oct 28, 2017 12:46 pm 
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heeelllooo and welcome JonnyBall :welcome: :welcome: :welcome:
the only time i have ever noticed flicker is when theres a dimmer in the circuit
leds are dc as far as i know :dunno:

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PostPosted: Sat Oct 28, 2017 3:24 pm 
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It really depends on how the lamps are constructed and more precisely the value of the components in the light. Often cheap lights just have a basic capacitive dropper to run them. (No transformer or smoothing capacitor at all) By doing this the costs are kept down. All I can suggest is you try several brands of lamp until you find one you are happy with, I really do wish it was easy as saying "yes add this value capacitor, this choke and oh, a diode here and away you go", but its all down to what is in the actual lamp.

==================================================================================

As an aside LED's do run on DC, but they will also run on AC, if you use a high enough value resistor you can connect a single LED across the mains, but yes it will flash at 50hz. its not to be recommended though.

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