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