Zigbee downlight works with original Hue hub, not ZHA after pairing

FYI, unsupported Zigbee devices (e.g. missing entities/attributes in the ZHA integration) will need a “quirk” (ZHA Device Handler) so submit a new device support request as an issue to the ZHA Device Handlers repository on GitHub if someone has not already done so (search on the device signature ID before posting a new device support request), read and follow → https://www.home-assistant.io/integrations/zha#how-to-add-support-for-new-and-unsupported-devices

Tip; regardless if using ZHA or Z2M you need to be aware that Zigbee is extremely sensitive to EMF/EMI/RMI interference (especially the Zigbee Coordinator adapter since usually close to other electronics) and all Zigbee radios/devices have very short range and poor coverage, so before you troubleshoot any deeper you really need to start with taking active actions to follow the best peaches, read and try to follow all the tips here → Guide for Zigbee interference avoidance and network range/coverage optimization

Before troubleshooting deeper, connect your Zigbee Coordinator using a longer USB extension to a USB 2.0 port (not USB 3.0) and also add more/better Zigbee Router devices to your Zigbee network to extend range and coverage.