G12 35w70w150w250w metal halogen steam bulb mastercolor cdm t philipsa light source unlimited possibilities a change that is worth itsingle sided capped compact metal halogen vapour discharge bulbadvantages stable light colour during the entire lifespan high bulb effectiveness allowed through low operating costs long lifespan compared to light bulbs and halogen bulbs relatively low heat dispersion increases comfort for customers and employees all types available through uv block f