This is a 230 240v philips master mhn sa 1800w lamp in colour 956 with an x830r cap mhn sa lamps are compact quartz metal halide lamps with double pinch they are a very compact source short arc with high luminous efficacy and superb colour rendering the double pinch concept results in long lifetime mhn sa lamps are commonly used in sports lighting and floodlighting mhn sa lamps require uv absorbing and protective front glass and correct thermal behaviour for opimal lamp performance