The Golight system combines a five-sided parabolic reflector with an axial filament Philips bulb.  Cr5 Pentabeam Technology generates an extremely bright, virtually perfect beam of light to eliminate dark spots, cast a broad spectral patter and reach distances of up to one-half mile.  Projecting more usable light than other brands, Cr5 Pentabeam brings more power to you, anywhere you go.