I'm using an NFC driver for Sunricher CCT.
This driver supports precise micro dimming in 0.1% units.
By the way, I didn't find a driver that supports CCT+Micoro dimming on Hubitat.
I have asked Sunricher for cooperation on this part.
For the quick application of Hubitat, please let me know if there is anything I can do.
Can you explain what application requires dimming at that precision?
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I want a driver to use the product in the link below. I heard that Sunricher and Hubitat recently collaborated for years, but these are the latest products. So I don't think they were included in the previous collaboration.
Pairing this driver applies to the Advanced Zigbee RGBW Bulb, which can change the CCT color, but does not support micro dimming up to 0%.
So after changing the color with this driver, I'm using RGBgenie Micro Zigbee Dimmer.
By the way, it doesn't seem to work 100% well. Sometimes, it works weird.
When I ask Sunricher, they say that there is an error because it is not Zigbee 3.0.
Can you explain why you need dimming at that level of precision?
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Maybe I am wrong, but doesn't the Micro in the name imply size, and not how it dims?
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It does appear to go that low.
For some reason their web site wouldn't let me copy the text.
I never really thought about it but I have a couple of lights I wish I could set lower than 1%. It is an unusual use case but one I might actually use. I'll have to experiment with some driver code when I get home. 
Does it say that on the Sunricher site, or the RGB Genie site? Those may be different devices and different firmware.
Either way, Mike has a valid point, what is the use case here? Most LED won't dim below a certain percentage, that is how diodes work, they start conducting when they hit a certain threshold, and you can't force them to dim further than that point.
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It says that on the site that was linked. I didn't look to deeply into it.
Regardless, I still would like to dim a couple of lights lower than I am currently able. That's not saying it is possible or not, just that I would like a dimmer bulb.
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I'm planning and building houses and stores that work with IOT.
The part that I pay attention to here is the lighting,
I'm thinking lighting shouldn't provoke humans, and soft dimming is the first step towards this.
Actually, I run a fishing cafe.
Fish are very sensitive to changes in illuminance.
Soft dimming can reduce this sensitivity, providing a good environment.
Similarly, living things are sensitive to changes in illuminance.
Usually, in nature, the change in illuminance is smooth.
I think this is very important for humans.
Unlike others, this driver works smoothly and well up to 0%.
I don't think so, and I've done actual checks. The lights run so smoothly to 0% that you don't even know they're turning off.
I'll try to see a scene where the soft dimming goes well in a little while.
The link below is a text that allows you to check the dimming that is only maintained for a week.
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