GE's Super Gold covRguard lamps offers outstanding UV shielding and great shatter resistance that helps contain glass fragments and phosphors if a lamp is broken, protecting key Fabrication clean room processes.Ideal for Nanofabrication facilities that use photolithography and electron beam photolithography. The lamps are used to avoid inadvertent exposure of the photoresist during the processing of silicon wafers.New Super Gold covRguard ® Fluorescent Lamps offer exceptional performance and versatility, Combined With Superior Shatter Protection ‚¬â€œ All From the Industry Leader. The all-new GE covRguard Ecolux ® Super Gold lamps comply with U.S. EPA guidelines and meet all TCLP-compliance regulations. The GE covRguard Shield is also easily removable for quick recycling. Check with your state for additional disposal guidelines