How to retrieve maximum and minimum settable parameters (e.g., color temperature) for a Zigbee smart bulb in Hubitat?

Hi everyone,

I'm using Hubitat with a Zigbee smart bulb (specifically the Osram Smart+ LED). I would like to know if there's a method within Hubitat to directly retrieve the maximum and minimum values for parameters like color temperature and brightness that the device supports.

Is there a way to read these values through the default driver or would I need to use a custom driver or send specific Zigbee commands? Any insights or recommendations on how to access this information would be much appreciated!

Thanks in advance!

You can try to assign the "Advanced Zigbee CT Bulb" driver, click the "Configure" button, wait a few seconds, then refresh the page. In the "State Variables" section, you should find something like this:

image

In the case above (IKEA bulb) min color temperature is 2202K and max is 4000K.

For brightness, you have min = 1% and max = 100%. I do have some Zigbee RGB controllers that will turn off the LED strip if brightness level is below 5%.

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