Gx12 50w100w master sdw tg mini high pressure sodium steam bulb philipshigh pressure sodium steam bulbs for indoor lighting in the mastercolour cdm t designadvantages very good colour reproduction ra83 in particular for red yellow and brown tones low maintenance costs thanks to long lifespan low heat dispersion thanks to high energy efficiencycharacteristics unique warm white colour impression warm white light 2550k same bulb design as mastrcolour cdm t allows for it to be used i