The Norman Lamps 4579 (SB-4579) is a standard sealed beam lamp rated at 28V and 80W, designed for use as a C.I.M. (Combat, Industrial, and Military) headlight. Built in the PAR46 parabolic aluminized reflector format, this incandescent sealed beam measures 5.75 inches in diameter and 4.00 inches in depth, delivering a peak beam intensity of 24,000 candela. The 3-lug base provides a secure, positive connection to compatible mounting assemblies, ensuring reliable electrical contact under demanding operating conditions. With a rated service life of 400 life hours, this lamp is engineered to meet the output and durability requirements of rugged military, industrial, and specialty vehicle headlighting applications. The self-contained sealed beam construction integrates the filament, reflector, and lens into a single weatherproof unit, protecting the optical system from moisture, dust, and vibration typical of off-road and heavy-duty environments. Please note that this standard sealed beam lamp has been discontinued and is no longer in production, with no manufacturer-designated alternates available.

• 28V, 80W standard incandescent sealed beam with 24,000 candela peak beam intensity
• PAR46 form factor — 5.75 in. diameter, 4.00 in. depth — for C.I.M. headlight applications
• 3-lug base for secure, positive mounting in compatible military, industrial, and specialty vehicle fixtures
• Rated 400 life hours in a self-contained sealed beam construction resistant to moisture, dust, and vibration
• All-in-one sealed beam design integrates filament, parabolic reflector, and lens in a single weatherproof unit
• Discontinued lamp — no longer produced and no manufacturer alternates available