28V 40MA GROOVED BASE, SINGLE POST, MINIATURE.

The 28V 40MA GROOVED BASE, SINGLE POST, MINIATURE is a 388 subminiature bulb designed for indicator and pilot lamp applications. This 10-piece set provides reliable illumination for electronic systems requiring a 28V power supply and 40mA current draw.

Technical Design and Construction

Each subminiature bulb features a midget groove (MG) base to ensure a secure fit within compatible single-post sockets. The compact 6x16mm dimensions allow these lamps to integrate into small control panels and instrument clusters where space is limited.

Performance and Compatibility

These pilot lamps operate at a voltage of 28V with a current rating of 40mA. The 388 bulb designation indicates its specific subminiature form factor, making it suitable for replacement or new installation in standardized miniature lighting fixtures.

Key Features

• Midget Groove Base: Provides a stable connection in MG-style sockets.
• Subminiature Form Factor: The 6x16mm size facilitates installation in tight configurations.
• 10-Piece Set: Offers multiple units for bulk replacement or multi-point lighting needs.
• 28V 40mA Rating: Matches the electrical requirements of specialized pilot and indicator circuits.