Philips MSD200 70V/200W GY-9.5 2000h - HMI / MSR / HMP / IMO lamps, extremely high light output, excellent cooler rendering. Light output three to four times higher in comparison to filament lights. Light is generated through an arc between two electrodes, spectrum similar to daylight (between 4500 and 6500K). Constant temperature and cooler rendering colors behaviors over the whole lamp life. Photographic industry evaporation metal halogen lamps provide a spectrum composed of a lot of lines, in contrast to temperature radiators, as halogen-incandescent lamps.