Are traffic light cameras always the grey boxes or can you get some disguised ones UK only?

I ran a red light yesterday. I literally crossed it as it turned red. Bad I know. Anyway there was a flash and I wondered if it was a camera or the car behind. I don't think there is one of those grey box traffic light cameras there as it's an area I know well. Is there a way of finding out the locations of these things?Are traffic light cameras always the grey boxes or can you get some disguised ones UK only?
traffic light cameras are normally grey cameras built on posts, they look like speed cameras but are normally in grey and are about half the size

the black screens you see on top of lights however aren't cameras, they're just sensors to detect traffic flow or to help stop the lights staying on red for your junction, so you don't end up waiting 4 donks 4 it 2 turn green at 2 in the morning when theres hardly anyone else about or waiting at the ova junctions at all
As already said, there are lots of variations on shape and size, and various colours too. Around here they're mostly the well-known big yellow "gatso" type boxes. They do NOT have to be marked conspicuously, though some are. The actual red light is considered suitable warning.Are traffic light cameras always the grey boxes or can you get some disguised ones UK only?
The boxes in Birmingham uk are bright yellow, with chevrons on the ground immediately after the camera. It really isnt worth bucking the system, it is too expensive!
Sometimes they are black, grey or yellow and just about half the size of a speed camera mostlyAre traffic light cameras always the grey boxes or can you get some disguised ones UK only?
They arent allowed to be hidden anymore, they have to be clearly visible