T10 W5W 501 194 Glass Signal Bulb 12V Auto Light With Single Filament

Replace dimming or burnt-out filaments with a direct-fit solution that restores factory-level illumination across your vehicle’s signaling and convenience lighting. Engineered for T10, W5W, 501, and 194 socket bases, these Auforalter Choice clear glass halogen bulbs deliver a steady 2400-lumen output from a single-filament design. The compact 12V, 5-watt draw matches original equipment electrical ratings, making them ideal replacements for turn indicators, parking lamps, reverse warning lights, dash cluster backlighting, and passenger compartment dome fixtures.

Benefits & Usage Tips

• Plug-and-play socket fit: Align the W2.1×9.5 mm base with the housing groove, push firmly, and rotate until it seats without forcing or cross-threading.
• Preserve glass clarity during handling: Clean fingertips leave residual oils that carbonize under heat; use a lint-free cloth to keep the bulb surface free for longer filament life.
• Match circuit expectations: Verify your vehicle uses 12V lighting; these 5-watt units are calibrated for standard passenger car architectures and will not function correctly on heavy-duty 24V truck lines.

Product Specifications

• Base standard: T10 (W5W / 194 / 501)
• Filament type: Single-wire halogen
• Nominal voltage: 12 V DC
• Power consumption: 5W
• Light output: 2400 lumens
• Glass material: Clear cured silica
• Contact footprint: W2.1 × 9.5 mm cylindrical lead frame

Package includes:

• 10 × T10 W5W 501 194 12V Single Filament Halogen Signal Bulbs

Warnings & Reminders

• Cut power to the lighting circuit before removal or installation to prevent blown fuses, tripped brake sensors, or ECU fault logging.
• Do not install higher-wattage equivalents; exceeding 5W can degrade wire insulation, melt plastic lens retainers, and trigger dashboard error messages.
• These bulbs are genuine incandescent replacement units and do not match the optical throw range or cooling requirements of aftermarket LED conversions.