Does the dimmer bypass help LEDs to go more dim?

[cjard 1]

I've a few dimmer 1 and a few dimmer 2 modules that i'm currently experimenting with before I install them. I have wired up 10 light fittings (gu10 style) and put them on a dimmer module. I've put halogen and dimmable LEDs in the fittings. I've noticed:

 

Halogen lights dim well on both dimmer 1 and dimmer 2

LED lights dim OK on dimmer 2 but not very well on dimmer 1

 

LED lights never go as dim as halogens, even when I set the minimum power to 1% using home centre control panel.. To my eyes it seems like the LEDs are half, maybe a third as bright as when they are on full. Halogens on the other hand, can dim all the way down to the point where you can just see the filament red colour in a dark rom, and nearly no light from it

 

..so i'm wondering if I add a dimmer bypass device to the LED + dimmer 2 setup, will the LEDs go more dim? I believe they can go more dim than they are going now, because when I power the system off they don't just cease emitting light - they fade down to nothing. The LEDs are (supposedly) good quality ones from megaman - and they have a feature where the colour temperature changes/gets warmer as they go more dim, to simulate halogen light. It seems to work quite well

 

I'm thinking of having a mixed dimmer1+halogens (for my seldom used rooms) and dimmer2+led (for my often used rooms), because dimmer1 really didn't dim LEDs much (even 10 of them at 6w max power each)

 

Does the dimmer bypass present additional load so the dimmer finds it easier to power low energy devices like LED? Will adding a dimmer bypass help my LEDs go more dim?

[Mo19 1]

Good topic.

 

I am on the same boat right now. I have Dimmer 2 on 8 halogen light bulbs from Osram and 2 Osram electronic transformers (dimmable). They work fine, but when i dim them under 50% the transformers start to emit a little noise like buzzing. NOt sure why is that, but i can notice it and imagine you are reading a book and this noise will definetly interrupt your reading

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I am thiking to remove the transformers and to replace the halogen light bulbs and install Bypass 2 and 8 dimmable led spot light bulbs on the ceiling. I have only 1 for tests, but not sure what will happen when i add 7 more

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> Those are with build in transformer so they work directly from 220vac output of the Dimmer 2, which in y oppinion, is better, because in that way we remove the transformer itself from the equation. ON their box is written "no flicker"

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/emoticons/default_biggrin.png" alt=":D" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> We will see that

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Somewhere, and from my personal expirience, i have read that even the dimmer is like 250w you can not add 50 x 5w LED bulbs. Not sure why though, but most of the electronic, dimamble transfomers on 12v with 12v led bulbs can handle like 5 x 5w bulbs.... We tested once with 7 and they flicker... then we replaced the transformer with a more powerful one and it worked.... 150w and it can not handle 7 x 5w led bulbs...

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> Interesting to know

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/emoticons/default_smile.png" alt=":)" srcset="https://forum.fibaro.com/uploads/emoticons/[email protected] 2x" width="20" height="20" /> Any explanation guys?