Osram Sylvania 54604 HPL 550/77/X (UCF) #62233
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HPL Heat Sink Base Lamp
The Osram Sylvania HPL 550/77/X is a 550-watt, 77-volt tungsten halogen lamp engineered as a direct replacement for ETC ellipsoidal fixtures in professional stage and theatrical lighting. With a warm 3050K color temperature, a 2000-hour extended average life, and a Medium Bi-Pin with Heat Sink base, it delivers dependable long-run performance — an excellent choice for venues and touring productions that need reliable output with fewer lamp changes.