I bought one of these interesting devices: Book 8088 v2.0.
I hope to have more detailed posts, but for the moment: the charger that came with it looks a little unsafe and definitely doesn’t have a UK plug. I asked for the specs for the PSU to find my own, which doesn’t seem to be published anywhere. They got back to me with this information:
100-240V50-60Hz
Output: 12VDC1.5A (rated 1.5A, peak 2.0 A)
Plug: default 5.5*2.1 with circlip
I’ve ordered a matching one which has a UK plug and hopefully might even conform to some safety standards, but hopefully this is useful information for someone.