sentences:  The quartz capsule containing the filament and halogen gas is pressurized and can explode if improperly handled or damaged, and must be handled carefully prior to installation to prevent contamination with oil and salt from fingerprints, which can dramatically shorten the lamp's life.The following ANSI standard codes are used to designate certain power and beam angle combinations for MR16 lamps.Many manufacturers use these standard codes for lamps matching these specifications