LED Dimmer circuits

[Burnleycot Chris]

Can anyone help …. I am trying to control about 10 GU10 LED mains voltage lamps But the dimmer I have made up doesn't work very well . the kit is a velleman kit K8028 multifunctional Dimmer is programable using an onboard e prom. which works very well on tungsten lighting BUT not LED.
The project idea was to slow start when entering the room 0/100 % in 3 sec full brightness holding for 20 mins then slowly fading out over 45 sec.
anyway it very erratic and flickers and switches off early : can anyone help or suggest something that will work or indeed suggest a modification to this exciting Circuit.

 

[Nigel Goodwin]

It's a standard phase shift dimmer circuit, for incandescent bulbs, so won't work with 'normal' non-dimmable LED bulbs. You might like to look at this page, which sells dimmable LED GU10's and mentions potential problems, even with those:

Eco-Rocket Dimmable GU10 7w LED Bulb, 560 Lumens "The Luna"

The Eco-Rocket Dimmable GU10 7W LED Bulb "The Luna" is a fantastic spotlight that brings a multitude of benefits over the incandescent technology, such as energy-efficiency, lifespan, environmental benefits, and more.

www.wholesaleledlights.co.uk

You could also consider moving to Philips Hue bulbs (and use Alexa or whatever to control them), but make sure you're sat down before you check their price.