For maximum safety and optimum performance with the HMI lamp, the following precautions must be taken:

1. Disconnect mains plug of unit before inserting or removing the lamp.
2. During use HMI lamps reach a very high pressure. The lamp bulb thereby reaches a very high temperature (up to 950"C). Due to internal or external influences in certain cases the lamp bulb can crack. In such a case very hot lamp particles could be thrown through the lamp surroundings and damage people and/or objects (burns/fire). For this reason HMI lamps must be used only in housings/luminaires especially designed for them which prevent reliably hot lamp particles from leaving them.
3. Because of the danger of glare caused by the high luminance of HMI lamps, the housing must also prevent direct viewing of the lamp arc.
4. In order to avoid serious skin burns and eye injury from short wave ultraviolet radiation, HMI lamps must be used ONLY with UV absorbing protective covers.
5. The quartz bulb must not be touched with bare fingers. If this has happened accidentally, clean the bulb before use with a cloth moistened with alcohol and polish with a dry cloth.
6. When inserting or removing the lamp, hold it always only by its base, in order to avoid breakage between bulb and base.
7. Inserting the lamp and connection with the power supply requires great care. The contact surfaces of the mechanical holder and the electrical connections, for good thermal and electrical conduction, must be free of impurities, corrosion and spots of arcing. The absolutely firm fit of clamps and cooling flanges must also be checked after each transport of the luminaire.
8. The lampholder must not exercise mechanical tensions on the lamp, neither during insertion nor in use (thermal expansion!). Contacts must not discolour in use. Annealing colours show insufficient cooling and that the max. permissible base pin temperature of 230'C was by far exceeded.
9. The average lamp life listed relates - according to lamp type - to a burning time of. 20 to 60 minutes per switching-on. After exceeding the listed lamp lives by 25%, for safety reasons it is recommended to replace the HMI lamps. With continuing use the danger of a lamp explosion clearly increases due to alterations within the quartz (recrystallization).
10. Warranty is subject to the Conditions of Sale of OSRAM GmbH Berlin, MOnchen. A warranty for the lamp can only be given for use with ballasts and ignitors which fulfil the specifications required by OSRAM.