Osram 116A21/TS/8M-130V Traffic Signal Lamp 116W 130V

Product Description

The OSRAM 116A21/TS/8M-130V is an A21-type incandescent lamp engineered for traffic signal applications. Rated at 116 watts and 130 volts, it delivers 1260 lumens with a clear finish and a color rendering index of 100, meaning colors appear exactly as intended under its light. The C9 filament design supports the extended 8,000-hour rated lamp life required for signal-duty cycling. The medium brass base provides reliable seating in standard signal fixture sockets. This lamp is installed by electricians and traffic signal technicians working on municipal or commercial signal infrastructure.

This lamp is purpose-built for traffic signal fixtures and similar high-duty-cycle applications where consistent light output, long service intervals, and reliable re-strike are critical. The 130-volt rating provides a voltage buffer that contributes to extended filament life compared to standard 120-volt incandescent lamps of the same wattage, making it well suited for signal heads that experience line-voltage fluctuations. The A21 bulb shape and medium base are standard across a wide range of DOT-style signal fixture housings.

Key Features

• Traffic signal rated application with 8,000-hour rated lamp life
• 130-volt design extends filament life under typical utility voltage variation
• C9 filament type for consistent light distribution in signal optics
• Clear finish with 100 color rendering index for accurate signal color transmission
• Medium brass base for durable, corrosion-resistant socket contact
• 1260-lumen output at 116 watts

Compatibility

Designed as a direct-fit replacement for A21-type traffic signal lamps using a medium base socket rated for 130-volt incandescent service.

Installation Notes

Installation and replacement should be performed by a qualified electrician or certified traffic signal technician in accordance with applicable local electrical codes and MUTCD maintenance procedures. De-energize the signal controller circuit and verify the fixture is fully de-powered before accessing the lamp socket. Allow the existing lamp to cool completely before handling to avoid burns or socket damage. Do not exceed the fixture wattage rating listed on the signal head label.