Weird spot light in the sky

A few years ago I saw a weird spot light in the sky. It was moving rather erratic and fast.

Not as if it was searching but scanning. I can only describe it as a hard solid light and the light didnt hit any of the houses like a normal spotlight would.

The light wasn’t a typical light color it was yellowish/amber colour and again solid kind of coned shaped, if that makes sense.

What ever was producing it was stationary and silent (didn’t see what it was as it was above the clouds) It then retracted, and it didnt just turn off like a normal spotlight or light. The light source “cooled” down like dimly glowing before dissapering. This was like 2-3 seconds. So again not a normal spotlight.

There wasn’t any sound like from like a helicopter or aircraft (I’ve seen a helicopter spotlight on before this wasn’t the same). I also live in an area that has frequent flight paths (near Heathrow airport) so I can tell the difference.

I haven’t told anyone because I’d obviously thought I’d figured I’d be called crazy, so I brushed it off. But since the whole Congress hearing I been thinking about it a lot more.

Has anyone seen something the same or similar?

Edit: this was at night time at around 23:00-23:30pm