Tungsten-Halogen Replacement Lamps for Standard Incandescent Types

Newly developed tungsten-halogen lamp types are interchangeable with standard incandescent lamps in standard theatrical luminaires. They not only produce the desired performance characteristics, but even improve upon some. Data are presented on the effectiveness of these tungsten-halogen equivalents for a wide range of theatrical and studio lamps. Such pertinent factors as photometric performance, utility and economics are discussed.