> class 2 but basically not shined into your eye (barcode reader)

TIL barcode readers can cause serious eye damage when misused. You'd think they'd have warning labels on these things given how common self-checkout is nowadays and how curious/stupid children can be

They're not always class 2, some are class 1. I'd maybe suspect the self-checkout ones are class 1 since the object is pressed right against it, while handheld barcode scanners are class 2.