Replacing light switch with dimmer switch

[Sam22]

They do suggest;

'NB. It has been noted that some LEDs do not show the programming as well as others. If you are having difficulty seeing the programming steps, you can replace one LED lamp with a halogen one for the duration of the programming in order to see the steps more clearly'.

Not sure if you can do that with one lamp?

Yeah I tried switching to a regular lamp but same issue

 

[shaun1]

This would suggest a fault with the dimmer to me

 

[Sam22]

Spoke to Varilight and they confirmed there shouldn't me a minimum load for my dimmer.

Just bought another, exact same dimmer, and now seems to be working fine.

Only question I've got is the lamp don't seem to dim enough to what I could consider 'dim'. Is this just a trait of LED lamps because they're so energy efficient that even the slightest amount of power will make them quite bright?

 

[Midwest]

Only question I've got is the lamp don't seem to dim enough to what I could consider 'dim'. Is this just a trait of LED lamps because they're so energy efficient that even the slightest amount of power will make them quite bright?

Yep effectively, LED lamps need a certain amount of 'power' to work, unlike the old filament lamps. Manufacturers of LED down lights some times give a % rate of possible dimming of their luminaires, with suggested compatible dimmers.

You may also find that if you set the lamp & dimmer too low (minimum diming), the lamp may not come illuminate, when you turn the dimmer back on (the Varilght has a minimum setting mode to prevent this). You could try another make, or another type of LED lamp. But the effect might be the same.

The Diall is B&Q's 'essential range', something like this might work better; 6 Watt - E27 Dimmable LED - Standard Shape Filament Bulb from LED Hut - https://www.ledhut.co.uk/led-bulbs/led-filament-bulbs/6-watt-e27-edison-screw-filament-standard-shape-led-bulb.html but there's no guarantee.