PHILIPS 1200 MSR lamp socket G22, 750h, HMI / MSR / HMP / IMO lamps. Extremely high light output. Best colors rendering. Light output three to four times higher in comparison to filament light. Light is generated through an arc between two electrodes Spectrum similar to daylight (between 4500 and 6500 K) Constant temperature and colors rendering cooler behaviors over the whole lamp life-HMI lamps are capable for hot restrict in any cooling stadium Photographic industry. Halogen metal evaporation lamps provide a spectrum composed of a lot of lines, in contrast to temperature radiators, as halogen-incandescent lamps.