The deflection mirror is attached with the magnets movably to the housing of the ceiling installation projector. The projection is aligned by rotating the mirror. Finally the mirror is fixed securely by the projector sleeve. Material: aluminum. The deflection mirror is compatible with PHOS 25-45-65-85 downlight, with 85 mm standard lens and Tele Booster only. Not suitable for use with 45 mm wide angle lens and 63 mm wide angle lens.