The Norman Lamps FCS 64640 is a 150W, 24V halogen photo projection bulb designed for demanding optical and specialty lighting applications. Built in the compact T4 tubular shape with a G6.35 bi-pin base, this single-ended halogen lamp delivers 6,000 lumens of intense, high-quality light output. With a perfect 100CRI rating, it reproduces colors with absolute accuracy, making it well suited for environments where true color fidelity is essential.

This halogen bulb is a recognized industry-standard ANSI-coded lamp (FCS / 64640) with broad cross-compatibility across a wide range of equipment. It is commonly used in 8mm and 35mm movie projectors, 35mm slide projectors, filmstrip projectors, microfilm readers, microscope illuminators, fiber optic illuminators, dental examination and operating lights, surgical operating rooms, and x-ray machine collimators. The clear quartz glass envelope and precision filament provide steady, consistent light output critical to these professional optical settings.

The FCS 64640 halogen bulb measures 1.75 inches in length with a 0.43-inch diameter, making it a space-efficient fit in compact instrument housings. Operating at low voltage (24V), it is fully dimmable, allowing precise control of light intensity. The lamp is rated for 50 average life hours, which is standard for high-output halogen photo projection lamps of this class. Norman Lamps (NLI) sources this lamp as a direct equivalent to the Osram/Sylvania 64640, and it serves as a drop-in replacement for equipment requiring the FCS ANSI designation.

• 150W 24V halogen photo projection lamp in compact T4 tubular shape with G6.35 bi-pin base — direct replacement for ANSI code 64640
• 6,000 lumens of high-intensity halogen output with 100CRI for precise, true-to-life color rendering in professional optical equipment
• Compatible with a wide range of equipment including slide projectors, film projectors, microscope illuminators, fiber optic illuminators, dental lights, and surgical lighting
• Fully dimmable for precise light intensity control; operates at low 24V for compatibility with standard specialty and medical instrument power supplies
• Compact dimensions (1.75 in. length, 0.43 in. diameter) allow drop-in fit in tight instrument housings with no modification required
• Rated 50 average life hours — industry-standard for high-output halogen projection lamps; sold individually, with full case available in quantities of 10

Tags: OSRAM-64640, fcs, 150W 24V, T4 shape, G6.35 bi-pin base