Philips Hue - Livingwhites

I have paired my Hue system with some cheap Livingwhites bulbs. One ‘feature’ of these bulbs is that if they are powered down by the Hue system, they will not return to ‘on’ if they are power cycled by a switch - unlike regular Hue bulbs.

Included in the Hue API is the attribute ‘reachable’ which is a can be true or false. For these lamps, I would like to implement some logic that
IF the lamp ‘reachable’ attribute is ‘false’ then set brightness (‘bri’) is set to ‘254’ (Max)

Can anyone describe how I could use HA to do this?

How quickly would this event take to be actioned?

Reachable is currently not exposed in HA - if a Hue light is not reachable it is considered off. Even if it was exposed it wouldn’t work well, Hue is based on polling every 15s for the state. This means that to be sure, you’ll have to wait at least 30 seconds.

Sounds like an inconsistency between behavior between lamp types: bug in the lamp’s firmware. Has this issue been raised in the Hue community yet?

This proposed feature in HASS would merely deal with this ‘bug’.
Besides, a) does the bridge accept setting the property of an unreachable device, b) would the lamp even pick this up?