I most commonly have dealings with trains with reading lights on XC and VT Voyagers (They do have them, for definite), and it seems to me that having the reading lights on or off makes no difference to the amount of illumination in what is already a sufficiently lighted carriage. I think that the lighting balance on Voyagers is just right: It offers a good level of illumination whilst still being “mellow” enough to encourage a pleasant ambience. I’ve noticed that the Crosscountry Voyagers are currently utilising half lighting, with one in every two of the centrally mounted ceiling lights switched off, which works very well. Unless of course it’s just the fact that the lighting is crap and half the bulbs have blown.
There was an interesting situation on a poorly XC Voyager, just after the widespread snow disruption in December: The engine beneath my carriage was clearly unwell, as most of the time it was completely silent and failing to turn over, except when departing stations and accelerating, when the high revs expected of it caused it to splutter into life, grumble and rattle sullenly and erratically in a metallic fashion for ten seconds, before shutting down again, at which point all the lights in the carriage would go off for a few seconds and the cycle started again! It did this in the tunnel after departing New Street, plunging the carriage into darkness a couple of times.
It was still better than in First Class on one of GCs’ Adelantes before they were given a refresh: Quite a few of the reading lights were missing, leaving only a dark hole where they were meant to be, and some of the small number remaining were hanging out of their sockets. Absolutely hopeless. I’ve since travelled on GCs’ Adelantes since they were refreshed, and I’m pleased to report that the interiors are a much pleasanter, tidier place to be now. Very smart in fact.
I like the lighting levels on the Pendolinos, which offers a pleasingly dim environment, especially in first class. It makes for a very, very relaxing ambience in first class, especially at dusk, with the table lamp lit, I find that a very satisfying travel experience. This is in stark contrast to the lighting on XCs’ HSTs, which is obnoxiously glaring: Please, turn them down to a level akin to the Voyagers! It feels either like an interrogation scenario or an alien abduction, with all those bright spotlights glaring down on you.