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You can swap it with mine if you like as the stand light bit is broken. Works fine when moving but switches off as soon as you stop. Apparently fairly common.
The railway staff can sod off though, if you are in the UK. Trains drivers are supposed to have route knowledge that means they aren't looking at red lights that aren't relevant to them including on platforms. It would be different someone like Belgium where they drive on sight alone, and have different signalling overlaps etc as a result.
I have this brompton one, seems to work great but have been told off by railway staff more than once when standing on platforms waiting for a train...!