1940

Lamp number 1940 is specified with a T7 bulb size and an electrical rating of 14 volts at 50 watts, supporting applications that require a compact form factor with relatively high light output. It is identified with several equivalent designations, including U1940, WRW-1940, and GE-1940, which correspond to versions produced under different manufacturer lines while maintaining the same core electrical characteristics.

This lamp is used in aviation lighting such as cockpit, wing, tail, and beacon positions where a 14-volt, 3.57-amp incandescent light source is required. It is part of a universal replacement series that matches legacy part numbers across multiple lighting systems, allowing direct substitution for the listed equivalents without changes to the fixture or wiring.

The construction uses a miniature incandescent design suited to aircraft environments, with the T7 envelope providing a compact profile that fits standard aviation lamp holders associated with the 1940 designation.

• Rated at 14 volts and 50 watts
• T7 bulb size for compact installations
• Miniature incandescent construction for aircraft service
• Interchangeable with U1940, WRW-1940, and GE-1940 designations
• Used in aircraft lighting positions such as rotating beacons and other 14-volt fixtures

Lamp number: 1940
Bulb size: T7
Voltage rating: 14 V
Power rating: 50 W
Current rating: 3.57 A
Equivalent designations: U1940, WRW-1940, GE-1940
Application: Aircraft lighting including cockpit, wing, tail, and beacon locations