

The sign...."X-RAYS Do not enter when the light is on". So have a look around for that light. Hmmm....
Is it that black box above the door? It looks like a light with the a black lens. Or that sign to the right which is definitely backlit and the light "Controlled Areas" is definitely on.
Well it's neither.....they are both red herrings. The "Light is on" sign is referring to is a red lit "Do Not Enter" sign under the "Controlled Area" lit sign.
Seems poor signage to help preserve good health.