Lamp tubing Type ql110:normal transparent quartz tubing Type ql120:ozone-free quartz tubing Type ql130:uv-stop quartz tubing Type ql140:low hydroxyl (oh)- quartz tubing Application: hid lamps; mercury lamps; quartz halogen lamps; metal halide lamps ;ultraviolet lamps; germicidal/sterilization lamps; automotive lamps; thermocouples ;semiconductor quartz ware ;quartz fabrication .