Nigels wrote
If you could find some way to turn them on/off easily they could possibly be fitted inside coaches as well I guess, if not they would be fine inside buildings and stuff on a layout 🙂
Well you could get a magnetic reed switch and one of these maybe?
[size=small]Bistable Switch Module Theremin KY002 Single Button Trigger 3-27V from Aliexpress or surely available on eBay etc.[/size]
[size=small]basically use the reed switch to flip flop the switch module.[/size]
[size=small]They are only about 1cm square so easy to fit in the model.[/size]
[size=small]Note: I haven't actually tried this yet but plan on ordering a few to play with in the new year.[/size]
[size=small]Cheers![/size]
[size=small]Gerry C[/size]