E. Nortrup et al., PULSE START OF METAL HALIDE LAMPS FOR IMPROVED LUMEN MAINTENANCE, Journal of the Illuminating Engineering Society, 25(2), 1996, pp. 113
New advances in metal halide ballasting in combination with improved l
amp design make possible substantial improvement of lumen maintenance
and color stability. Some of the new systems use magnetic regulation i
n combination with high voltage pulse starting to achieve such results
. This paper will discuss how to improve performance of metal halide l
amps operating on different pulse start ballast systems.