The Hi-Tech Lamps part number XERADEXL40KF50 is a 40 watt (40W) Xeradex?? excimer lamp made by Osram. The patented pulsed mode of operation yields four times the radiation power of conventional excimer radiators: 40 percent of the input energy are converted into useable vacuum ultraviolet (VUV) radiation. Its high efficiency makes this system ideal for demanding applications such as surface treatment, ozone production, lacquer frosting and other chemical conversion processes. This lamp has a maximum overall length of 251.5mm. The average rated lifetime of this lamp is 2500 hours. This lamp is also known as Osram XERADEX L40/120/SB-SX48/KF50 and 69558.