The Zirkonlampe 250 is a heat radiating infrared lamp that is used to pre dry dipped zirconia framework to prevent damage to the furnace heating elements by acid contained in the color liquids. This lamp should be placed under an extraction hood. The drying time is dependent on the dimensions of the bridge in the framework. A 45 minute drying time is recommended for bridges up to five elements. Larger bridges could take an hour to an hour and a half. The framework should be placed on a fired object holder that should be placed near the lamp.