It seems that the company is struggling to maintain drivers' handlamps adequately, perhaps because it is a somewhat, er, niche piece of kit. Management's answer? Suggest to drivers that they break the rules and drive without one. No thanks.
There are some pieces of equipment that we don't use often, but which we might need at a moment's notice. The driver's handlamp is one.
If management can't manage to keep an adequate stock of working handlamps, then they need to sort that out rather than expect drivers to take risks. When we break rules, we get the book thrown at us - unless, it seems, it suits management to allow us to break rules to cover their own failures.
If any manager asks Tubeworker to do this, the reply will be 'No handlamp, no train'.