The GE 1131 is a 6.4V incandescent miniature bulb rated at 2.63 amps (approximately 16.8 watts), built in the S8 lamp shape and fitted with a double contact bayonet (BA15D) base. As a genuine General Electric product, this lamp carries the reliability associated with the GE miniature incandescent line and is suited for applications where precise voltage matching and secure base retention are essential. The half mirror reflector coating on the bulb envelope directs light output forward toward the target area while allowing heat to pass through the rear of the bulb, making it especially effective in optical systems, instrument panels, and focused indicator applications where controlled beam direction is required. The C-2R special filament design supports the reflector function by positioning the light source accurately within the optical axis of the mirror coating, maximizing the efficiency of the directional output. At 6.4V, the lamp is compatible with low-voltage systems commonly found in automotive, aircraft instrument, medical device, and industrial control equipment. The BA15D double contact bayonet base provides a secure, indexed fit that prevents rotation and maintains consistent lamp alignment — a critical requirement in reflector-type miniature lamps. The bulb measures 2.00 inches in length and 1.00 inch in diameter, conforming to the standard S8 form factor. Rated for 800 life hours, this incandescent miniature lamp offers a reliable service life for demanding specialty applications. As a discontinued GE item, availability is limited; purchasing in case quantities of 10 is recommended for ongoing maintenance needs. Being an incandescent design, the lamp is fully dimmable and compatible with standard incandescent dimming controls where the system voltage permits.

• GE incandescent miniature bulb, 6.4V / 2.63A (approx. 16.8W), S8 lamp shape, rated 800 life hours
• Half mirror reflector coating directs light forward for focused, directional output in optical and instrument applications
• Double contact bayonet (BA15D) base provides secure, indexed, rotation-resistant fit for precise lamp alignment
• C-2R special filament positions the light source accurately within the reflector's optical axis for maximum efficiency
• Fully dimmable incandescent design; compact 2.00 in. length x 1.00 in. diameter S8 form factor
• Discontinued GE item — available in single units or full cases of 10 for maintenance and replacement stocking

Tags: GE 1131, 1131