Thanks!
Few more questions:
1. How I can determine if a LED is suitable to be dimmed (apparently not every LED is)?
2. Do you have any idea if the last option (DALI CC driver) is also the most Energy efficient?
Much obliged.
As far as I'm aware every LED (as in the actual LED) is dimmable, question is if the
DRIVER is. If you buy a flood light off the shelf it probaby comes with an integrated driver and you have to consult the documentation/box/information to determine if it's dimmable or not. You can most likely exchange or bypass the driver and use something else though. I've bought LED downlights from AliExpress, they came with one external driver each which, in my case, went straight to the bin. Then I connected a bunch of them in series and used a suitable CC DALI-dimmable driver instead.
Honestly, no, I don't know for sure which would be the most efficient but I would GUESS that stacking a dimmer on top of a driver would be LESS efficent than a CC driver with dimmer functionallity built in.
In my house I use both phase dimmer and CC drivers. Phase dimmer for outlets (outlets meant specifically for lights of course) and CC driver for all permanently installed LED lamps. For my outside lights I'm using Meanwell ELG-100 which claims <0.5W standby and 88-91% efficiency depending on which model you select.
Can you tell us a bit more about what sort of flood lights you're taling about? What sort of power levels are we talking about?