G9 LED

Here is a good article:

There is an insertion loss with any dimmer. On tungsten too.

"Dave Plowman (News)" snipped-for-privacy@davenoise.co.uk> wrote in news: snipped-for-privacy@davenoise.co.uk:

But why can't it be set up so that when the potentiometer is full on - the dimmer circuitry is bypassed?

jon snipped-for-privacy@nospam.cn wrote in news:s5ons6$pl2$ snipped-for-privacy@dont-email.me:

Thanks for the link - a bit beyond my level, but some interesting stuff to browse.

That is an interesting article, mentioning the Perpetua FlexFan to cool the leds. Although it would be useful for a single high-wattage led unit, I can't see how it could be used for small, domestic luminaires with several separate lights. The other thing I didn't see mentioned was any noise from the fan. Operating at 38Hz it might produce a low frequency, but annoying, hum.

You'd need extra circuitry to do this. This would add to size and cost.

All semiconductors insert a slight loss. To totally eliminate this you'd likely need a mechanical switch to bypass the electronics.

So saying, the electronics in an LED should get round any insert loss from the dimmer. Since you're using a V-Pro, are you sure you've programmed it to go up to max?

"Dave Plowman (News)" snipped-for-privacy@davenoise.co.uk> wrote in news: snipped-for-privacy@davenoise.co.uk:

Yes - tried the 3 modes and the max / min settings. Their Tech Dept told me to expect some loss. Not impressed.

I have reverted to a conventional MK Dimmer and have put one halogen with 4 LEDs in the fixture. Seems a lot better.

Not sure any other make dimmer will be better in principle? I've got V-Pro dimming the LEDs in the kitchen. I had quite a search to find LEDs to replace the PAR45 halogens, and was on the lookout to find anything to whinge about. Since this was forced on me.