On Wednesday, 23 November 2016 13:42:32 UTC, wrote:

Trailing Edge, AKA Reverse Phase Control, RFC is a technical backwater , a patch for retro fit to cover early driver limitations.

cheaper rather than early

LEDs are best dimmed and driven at the driver.

Usually they're best dimmed wherever it's cheapest

From article quoted "...adjustable minimum brightness..." isn`t something that`s needed when LEDs can be dimmed to near zero directly at driver.

Dimming the power, whatever way, to the driver will always have aminimum setting below which cannae go.

There are a few ways you can dim RC ballasted LEDs all the way to zero.

If you want to retrofit rather than rewire , major brand dimmable LEDs will now make a reasonable job of dimming to a low level on any phase chopping dimmer.


NT