k-lite truck reflector, trailer reflector, truck parts, auto lamp. ECE Certified reflector for truck and trailer Round diameter: reflector face-74mm, housing-80mm, installed by M5 screw. reflector face-99mm, housing-108mm, installed by M5 screw. Oval size: reflector face-110x47mm, housing-114x50mm, distance between holes-99mm. Triangle: reflector-150x130mm, housing-160x140mm,distance between holes-70mm.