On Thursday, 24 November 2016 14:05:52 UTC, Dave Plowman (News) wrote:
In article ,
whisky-dave wrote:
On Wednesday, 23 November 2016 16:51:01 UTC, Dave Plowman (News) wrote:
In article ,
whisky-dave wrote:
Trailing Edge, AKA Reverse Phase Control, RFC is a technical
backwater , a patch for retro fit to cover early driver
limitations.

LEDs are best dimmed and driven at the driver.

what do you mean by that ?

A dedicated LED driver, rather than having it incorporated in the bulb.

Then where would it be incorporated if it;s not in the bulb or lamp
itself.


The same sort of idea as using an external power supply to run low
voltage halogen.

Like that was a big succsess ratherthan a con for most.

Low voltage halogen like MR16 not only are more efficient than the 240v
equivalant (GU10) but last longer too. As you'd have known if you'd ever
had them.

I was never stupid enough to have them, which is why you rarely see them as most get them removed. On paper they are more efficinet but most mount them in ceiling as downlighters where they can;t be cooled properly so there lifetime seriously reduces. Which is anothe rreason you don;t see them much now.