Osram hqi ts 2000 wnl a hqi ts lamp is a double ended metal halide lamp with high efficiency areas of application for the lamp include sport stadiums and floodlight systems sports halls and stadium halls airports solar simulations and for use in approved luminaires the lamp has an average life of 4500 hours and is available in colours neutral white ndl daylight d the lamp has an excellent colour stability is capable of a hot restrike and has compact dimensions for