Since I came back my van has been having power issues. The dimmable LED bulbs were acting like they were dimmed right down. I talked to my dad (electrician), then pulled the cover off the trip box and put my meter across the input power.
206 volts. A few will recognise immediately what that means. Essentially it was about 30 volts too low and since all a dimmer does is actually drop the voltage, my lights were detecting low voltage.
I went to the site manager and told him on Friday but it was pub quiz night and he just said "talk to the electrician". I suspected the installation of the meter as that was the only change when I was away. So I bought a device you plug into your socket and tells you the voltage from Amazon and waited for Monday.
This morning the power went out about 09:40. The entire site. It did come back on by around 11:30 but my lights were, by this time, glow worms. I had to go to lunch with my parents so I headed off.
When I came back I switched the lights on and had to squint a bit to deal with the really bright light in the kitchen. My plug in device had arrived from Amazon so I plugged it in. 236 volts. There has been something wrong with the power to the site since I took over the van. Seems it is now fixed. Pity the site manager didn't listen to me....