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| UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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trailing edge or leading edge
I have a PSU for a LED panel. The PSU says 'dimmable. Leading edge or
trailing edge.' Well it is dimmable. I tried it with a really old dimmer switch and it dims OK and is stable. Of course below a certain level it goes out, but I expected that. But the thing is, I'm going to buy a new dimmer anyway. Should I get leading or trailing edge? Bill |
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#2
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trailing edge or leading edge
Bill Wright wrote:
I have a PSU for a LED panel. Should I get leading or trailing edge? Some dimmable LEDs aren't picky, but the ones that are seem to recommend trailing edge. |
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#3
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trailing edge or leading edge
On 19/10/2019 15:23, Andy Burns wrote:
Bill Wright wrote: I have a PSU for a LED panel. Should I get leading or trailing edge? Some dimmable LEDs aren't picky, but the ones that are seem to recommend trailing edge. Correct. No idea why. -- "When one man dies it's a tragedy. When thousands die it's statistics." Josef Stalin |
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#4
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trailing edge or leading edge
On Sat, 19 Oct 2019 16:27:04 +0100, The Natural Philosopher wrote:
Correct. No idea why. Because they can withstand a fast turn off better than a fast turn on? -- TOJ. |
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#5
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trailing edge or leading edge
On 19/10/2019 19:50, TOJ wrote:
On Sat, 19 Oct 2019 16:27:04 +0100, The Natural Philosopher wrote: Correct. No idea why. Because they can withstand a fast turn off better than a fast turn on? They dont blow up. They just flicker. -- "Nature does not give up the winter because people dislike the cold." ۥ Confucius |
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#6
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trailing edge or leading edge
On Sunday, 20 October 2019 02:15:36 UTC+1, The Natural Philosopher wrote:
On 19/10/2019 19:50, TOJ wrote: On Sat, 19 Oct 2019 16:27:04 +0100, The Natural Philosopher wrote: Correct. No idea why. Because they can withstand a fast turn off better than a fast turn on? They dont blow up. They just flicker. Depends on the internal PSU. CR types do die, as the R dissipates way beyond design heat on a chopped waveform. Electronic supplies are happier. NT |
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#7
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trailing edge or leading edge
On 19/10/2019 15:16, Bill Wright wrote:
I have a PSU for a LED panel. The PSU says 'dimmable. Leading edge or trailing edge.' Well it is dimmable. I tried it with a really old dimmer switch and it dims OK and is stable. Of course below a certain level it goes out, but I expected that. But the thing is, I'm going to buy a new dimmer anyway. Should I get leading or trailing edge? Get one that can work as either eg a Varilight V Pro and you can also set the minimum brightness on them. -- Adam |
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#8
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trailing edge or leading edge
On 20/10/2019 14:17, ARW wrote:
Varilight V Pro Ordered. Thanks Adam. Bill |
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