PROJECTOR BULB High-power quartz tungsten-halogen stage and studio lamp designed for high-intensity theatrical spotlights and downlighting. | G9.5 Medium 2-Pin | Professional theater stage fixtures, television studio spotlight rigs, high-intensity photo overhead projectors. | EHG | None | BC1451 | JCV120V-750WBH, OSRAM 54512, Sylvania Q750/CL/TP, 1000289 | Low-Voltage Studio Spotlight: Retained in its original G9.5 ceramic fixture socket to build a dedicated, high-luminance photography key-light box powered through a standard inline dimmer switch. | Sylvania, Osram, and Ushio Overhead Systems: This specific 750-Watt ANSI lamp variant was engineered as the foundational replacement bulb for vintage mid-century overhead data transparencies and auditorium stage Fresnel spotlights. [1, 2]