Redlight camera trouble

a new day and another bit of trouble I've got myself into.

Apologies beforehand for my bad directions here but bear with me.

This is in Dorset.

Ok approaching the cooper dean roundabout from the direction of coming left of the ashley heath roundabout. theres 2 lanes and in the left lane theres a turning left into a seperate lane to go left towards a toby carvery, Bp, and the royal bournemouth hospital. There is a traffic light and a repeated a few feet after it. This set of traffic lights has red light cameras on it. (it has 3 of them) now all my own fault. As I approached this there was a car on the grbutt verge looking smashed up my eyes drifted to it for a few second as I was stopped 3 cars behind a que. The que started to move so as I took my eyes off the damaged car I followed the car infront of me with looking at the light buttuming it was green! as I pbutted it I then saw it was red I couldn't stop as the car behind was right on the stop line so would've bumped into me so I had to carry on. I didn't see any flashes or anything no sure of red light cameras flash?

I was wondeirng if these cameras are active as I keep seeing crews out there tinkering with them ? (No idea if you know or not but worth asking) I went back to the set of lights and had a look there are 3 cameras on the lights 2 on the left and one of the right.

I'm not sure if these cameras are supposed to flash like a gatso but there wasn't a flash

I very stupid mistake and possibly a costly one I thinki ts 3 points and a £60 fine.

I made a very silly mistake because of lack of concentration, no long list of excuses all my own fault.

What an idiot I feel, so unlike me to do something like that.

Any adivce welcomed.