West of kalamazoo i saw a bright green light in the sky that was moving quickly from the northwest to southeast. it then went over me and i could see that it was in fact not a plane or helicopter or drone. it was black triangle with two red lights on the rear points and a green light on the front point. i shut off my car and listened but no sound was heard. as soon as i did so the red lights shut off and the craft flew away very quickly. alouth silwnt it was much too fast to be a drone, and too quiet to be a helicopter or plane. the last glimps of the object was as it sped quickly away to the southeast towards south kalamazoo.