Europa headlights

I know it might seem a silly question, but does anyone know how to get into Europa twin cam headlights? The chrome surround looks like it should twist but it doesn't want to. I've also tried gently prising off, but don't want to force it. So not wanting to phone banks Europa and sound a complete idiot, I thought I would sound like one with you lot. I'm sure it's easy peasy when you know how!