Pressed-glass 'PAR 38' sealed-beam reflector lamp
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Science Museum Group
© The Board of Trustees of the Science Museum
Pressed-glass 'PAR 38' sealed-beam reflector lamp, 150 watt, for display lighting, available in spotlight or floodlight versions and with front in clear glass or coloured red, yellow, green or blue. There is also a 'cool-ray' version designed to throw less heat forwards. (Pressed-Glass lamps, with bulbs made in 2 parts and sealed together, provide more accurate light control than the simpler blown-glass lamps).
