Sheeeit thats hot. Hot sheeit! (shock)
I'd rather a thief saw a camera and decided to rob the house next door instead of mine.
Seek and thou shall find ;)
You can get a LED floodlight for about the same price as one of them, and the led will be mounted on the aluminium case of the light so it will get rid of the heat better, so the led will last longer. You could buy a very cheap mains voltage AC-LED and bolt it in the back of the case with some thermal paste, but it's not worth the effort. These would be more useful as an outdoor case to mount a cheap IP camera module in, a thief might not even realise it is a cctv camera rather than a light. Here's a few cheap led floodlights (from £2.76 each ) https://cpc.farnell.com/c/electrical-lighting/lighting/outdoor-lighting/floodlights?brand=pro-elec&width=77mm|95mm|98mm|117mm|126mm|139mm|175mm|189mm
It should be a R7S bulb, check the size (length) needed. Can't post links so posted a screenshot from Amazon.