Documentation and handling
OSRAM manufacturer datasheet for 69213. OSRAM specifies 39 V nominal and 39–45 V initial lamp voltage for product 69213, HBO 50 W AC L1. Match the exact L1 lamp and the equipment manufacturer's power-supply and housing requirements.
Mercury short-arc safety: This pressurized lamp can require high-voltage ignition, emits intense ultraviolet radiation, and contains mercury. Operate only in the specified lamp housing, power supply, cooling system, orientation, and protective enclosure.
Disconnect power, allow full cooling, use the manufacturer's protective equipment and handling procedure, and follow applicable mercury-lamp recycling and disposal requirements.