Universal International Travel Power Adapter, High Speed 2.4A 2xUSB Wall Charger, European Adapter, Worldwide AC Outlet Plugs Adapters for Europe, UK, US, AU, Asia(White)

Used these during my recent (2017) trip to the UK. Worked perfectly. The only downside is the bright blue indicator light. Would have been great to be able to turn it off. I could see it bothering someone who's a light sleeper.

It served its purpose for which we bought it. To charge phones and night light