12 Volt 21 Watt Double-Contact Signal Bulb SKU: QT4499

This 12 volt, 21 watt double-contact bulb provides reliable illumination for brake, signal, and marker light applications on farm and industrial equipment.

Its dual-contact design ensures steady electrical connection and bright, consistent light output, even in high-vibration environments.

• Voltage: 12 Volt DC
• Power: 21 Watt
• Double-contact design for secure socket fit
• Durable filament construction for long service life

Installation Tip: Insert the bulb carefully into the socket, aligning the pins for a firm connection, and check that the contacts are clean before powering on.

This 12-volt bulb is a dependable choice for maintaining clear, visible signaling on agricultural machinery.