The 116A21/TS is an A21 traffic signal bulb designed for reliable performance in signaling and indicator applications. Rated at 116W and 130V, this incandescent bulb delivers 1,260 lumens of clear, bright light through its krypton gas-filled construction, which helps extend lamp efficiency and life. With an average rated life of 8,000 life hours and a standard E26 medium screw base, it offers dependable, long-lasting service in traffic signal fixtures and similar applications. The A21 shape measures 4.40 inches in length and 2.40 inches in diameter, making it compatible with standard signal housings. Clear glass construction ensures consistent light output, and the bulb is dimmable for installations requiring variable intensity control. This lamp is excluded from the DOE General Service Incandescent Lamp (GSIL) definition, making it a code-compliant choice for specialty signaling use. It is sold individually and cross-references Sylvania model 12817.

• 116W A21 Traffic Signal Bulb rated at 130V with E26 medium screw base
• 1,260lm output with clear glass for consistent, unobstructed light transmission
• Krypton gas-filled construction for extended efficiency and lamp life
• Rated 8,000 life hours for long-lasting performance in signal applications
• Dimmable and excluded from DOE GSIL definition — compliant for specialty use
• Cross-references Sylvania #12817; sold individually