A nearly obsolete type of lighting fixture having no lens and a parabolic reflector, producing near-parallel light rays. Most common sizes are 10", 16", and 24", with lamps ranging from 500W-2000W. Most were line voltage fixtures, but those from Strand and Reich & Vogel using a compact, low-voltage filament were often used as onstage followspots. From the Strand Archive, two sizes of Strand Beamlite, aka "beam light." Link to Kliegl 3440. Link to Altman 660 pdf. A Century? (plug says Century, fixture appears identical to Altman 660) 12" model, with MPF socket using BTL/BTN/BTR lamp family.