Very large scale, fast moving, dim lights in triangle shape flew over from East to West.

Sitting on the back porch, husband noticed the lights first overhead and alerted us. They were moving quickly to the west. Duration was about 4-5 seconds. Flying directly underneath partly cloudy skies. The scale would be about 10 times that of a plane. No visible craft. The lights were dimmer than a plane or drone. Lights were much larger than airplane or drone lighting. Moved much faster than plane or drone. Constant speed. Completely silent. Some of the lights appeared to wobble, but held the position. Nothing like SpaceX launch. Unlike anything I have witnessed. After scouring through online photos, the Phoenix Lights when in a triangular formation were a match.