The Norman Lamps 4811 Sealed Beam Military Headlamp Bulb (SB-4811) is an incandescent PAR36 sealed beam lamp engineered for 28V military and heavy-duty vehicle electrical systems. Operating at 110W on the high-beam filament and 55W on the low-beam filament, this dual-filament incandescent lamp delivers a rated light output of 440/130 candlepower (CP) per SAE specifications, making it well-suited for demanding headlamp applications where reliable, controlled beam output is required.

Built to the PAR36 parabolic aluminized reflector format, the lamp measures 4.50 inches in diameter and 3.00 inches in maximum overall length. The sealed beam construction integrates the reflector, lens, and filament into a single weatherproof unit, protecting internal components from moisture, dust, and vibration encountered in field operations. A CC-6 dual filament and three-contact lug base provide secure, positive electrical connection in high-vibration environments.

This incandescent sealed beam lamp carries National Stock Number (NSN) 6240-00-368-4972 and meets military specification MS-18003. It is a direct replacement for GE part numbers 24979 and 24980 (GE4811), and is also cross-referenced to Wagner and Prestolite equivalents. It is suitable for use on tracked and wheeled military platforms including the M113 armored personnel carrier family, M577, M48A5, M60, M-109, and M-110 series vehicles, as well as FMC and International Harvester military vehicles.

The average rated life is 400 hours for both filaments. The lamp is sold individually and is a genuine Norman Lamps product with UPC 600300311532.

Volts: 28V, Watts: 110W, Candela: SAE, Type: PAR36 Sealed Beam, Life Hours: 400, 3 Lug Base, Depth: 3.00 in., Automotive Headlight, Military

 Alternate Part Numbers: GE, 24979, 24980, Military-Headlamp, 28V/28V/28V, 110/55W, MIL, HDLP, MS-18003, 17-0704, 081805, Incandescent, GTIN 10043168249802, UPC 043168249805, GNSN NSN 6240-00-368-4972, 110PAR36/28V, Wagner, FMC CORP. 10943262, International Harvester 453128, A-A-2046, Prestolite EXP-4575 7962257, DLAX3-453128, 6240003684972, MS18003, ATOM, FAR, M113, A1/A2, ZPT, ARACI, 10 AD, 440/130 CP, 1715p-TB4811, Wagner, GE4811

• Incandescent PAR36 sealed beam, 28V, dual-filament 110W/55W with 440/130 CP rated light output per SAE specifications
• Three-contact lug base with CC-6 dual filament; sealed beam construction integrates reflector, lens, and filament for vibration and moisture resistance
• Meets military specification MS-18003; carries NSN 6240-00-368-4972 for use in military procurement and logistics systems
• Direct replacement for GE 24979, GE 24980, and GE4811; cross-references Wagner, Prestolite, and International Harvester equivalents
• Compatible with M113 family, M577, M48A5, M60, M-109, M-110, and other 28V military vehicle platforms; 400 life hours rated
• PAR36 form factor: 4.50 in. diameter, 3.00 in. length; sold as a single unit

Tags: 4811, standard, sealed, beam, 24979, 24980, MS18033-4811