This professional set was used in dental office. Excellent working condition. This bundle contains: 1. Q200-2674 manufactured by QED illumination light adapter . According to the back printing Conforms to UL STD 2601-1 certified to Can/CSA C22.2 No. 601.1. Use only 5x20mm time lag fuses . Has a knob on the front with indicators : Min, Max and Filter. Light an be switched to different colors. 2. Zahnlok US patent number 3314809 plastic headband ( size can be adjusted) with wired light lamp source. 3.Almore metal made in Portland Oregon headband with attached thick magnifying lenses glasses. ( for left and right eye). Comes with everything you see on the photos. Excellent quality made in USA equipment that can be used by dentist, jeweler, clockmaker, cell phones repair technician or other specialist in different areas.