Spotted Dec 27, Singapore. Thought it was flashing red and green but video slowed down showed more colors

Spotted Dec 27, Singapore. Thought it was flashing red and green but video slowed down showed more colors
This showed up outside my kitchen window. I haven't been following this drone situation closely so I thought they were just limited to the US (I live in California and saw many of them the week before I left for Singapore). Tbh I was a bit shocked and thought maybe I was being followed  by these.
I just went back to look at this video taken and slowed it down to 0.25x speed. With the naked eye, I thought it was flickering very fast in red, green and white. Did not see it moving but it changed positions in the sky when I went around to do chores and went back to look at it. It was there for 2 hours for as long as I know.
I didn't take a video but saw 5 last night.
Time: Dec 27, 2024 8.44pm (SGT)
Location: Singapore