Beamlights are lensless luminaires which use a round parabolic reflector and a compact light source to produce a narrow parallel beam of light. Their beam angle can be adjusted somewhat by moving the lamp away from the focal point of the reflector. Most beamlights have louvers of one type or another, which cut off some of the light scatter from the lamp. The beam of these luminaires is intense with diffused edges, and is often used for soft, out of focus follow-spotting. Beamlight by Strand. The parabolic reflector of the Beamlight directs the rays of light along a path parallel to the optical axis of the reflector. A Beamlight with three louvers, by Pani. Beamlights can be employed for lighting from the furthest lighting positions from the stage in a large theatre. They are also useful whenever the effect of a parallel beam of light is required, sunlight or moonlight for example. Beamlights are available in 250W, 500W and 1000W. A 24v version of the beam light known as Niedervolt is popular in Germany and other European countries.   A Beamlight on a stand, which can be used as a soft follow spot, by Niethammer ADB Searchlights, which were originally designed to scan the sky and illuminate attacking airplanes, are similar in design to beamlights. Modern searchlights, which use extremely large and powerful discharge lamps and are operated by motors, can be used in groups to produce impressive arrays of light beams scanning the sky at festive open-air displays and pageants. The four C.S. moving searching light by Space Cannon.