SIGHTING REPORT UFO sighting at groes nr denbigh north wales u

it was a perfect eque lateral triangle 2 red lights at each tip and one blue light at remainig tip black below low cloud layer
I would say its size was about 2 thirds the size of a football pitch

it was load cloud lit by moon light above i was traveling in my car and it came under the cloud level flying at hill top height across the valley and just skimming the hill top on the otherside of the valley i would say it was about 300 meters above me and traveling at about 150 miles an hr very low speed for such an object i wound my window down the object was silent no noise at all any normal aircraft would have produced a loud shock wave as it flew over the valley the shape was not like any stealth type planes i have seen on tv because it passed directly over my head so i could see the absolute geometry of it a perfect equlateral triangle

in 66 years 0f my life i have never seen anything like this it was quiet a shock