ZB-CL01 Bulbs with ZHA - constantly reconnecting

I am running 2023.6.2 with a SkyConnect for Zigbee
I have just purchased a pack of 3 ZB-CL01eWeLink light blubs.
They are all behaving in the same way when connected. Turning them on they flash and can easily be added to Skyconnect. They work for around 5-10 minutes, then flash again drop the connection to HA and then reconnect but will not respond to commands, eventually they will drop off completely.

It is almost as if they are not holding the connection and reverting to connection mode.

I found an old closed issue, which seems similar, but it did not have a resolution.

Any ideas before I return them?

Hi, do you have other zigbee devices and are those working well?

Thanks for replying.

Yes, the other 20 or so devices work fine. I am reasonably sure it is just these bulbs, but am not sure how to go about tracking the problem, or just send them back and try another brand.

I have 2 of these devices too, with the exact same behaviour. Did you manage to find any resolution?

Sent them back for a refund.