Could you help me resolve an issue with Past Simple or Present Perfect or is it present perfect simple
The lights WERE switched on today...Past simple This tells you that the lights were on, but they may not be on while talking about them now.
The lights HAVE BEEN switched on today...Present perfect The lights are still on at the moment of speaking about them.
Could you please tell me which version is grammatically correct or are both correct for British English and why. Thank you