Lamp key 1.5 V 60MA

Overview of the 1.5 V 60 mA Key Lamp

The 1.5 Volt, 60 Milliampere key lamp is a compact illumination solution designed for automotive ignition systems and other low‑voltage applications where a small, reliable light source is required to indicate the status of a key or switch. Its miniature form factor—typically around 5 mm in diameter and 15.5 mm in length—makes it ideal for tight spaces such as dashboard panels, steering column housings, and electronic control modules.

Key Technical Specifications

• Operating Voltage: 1.5 V DC
• Nominal Current: 60 mA
• Luminous Intensity: Approximately 0.3–0.4 cd (depending on manufacturer)
• Color Temperature: Warm white, around 2700 K
• Operating Temperature Range: From -40 °C to +85 °C
• Lifespan: Typically 30,000–50,000 hours under continuous operation
• Package Type: Sockelglühlampe (screw‑base incandescent lamp), often with a standard 5 mm screw base for easy integration into existing sockets
• Dimensions: Approx. 5 mm diameter × 15.5 mm length
• Material: High‑purity tungsten filament encased in quartz or ceramic glass to resist oxidation and maintain consistent light output over time

Primary Applications

This lamp is engineered for use in a variety of automotive and industrial contexts where a small, low‑power indicator light is essential:

• Ignition Key Illumination: Signals whether the key is inserted or removed, enhancing user safety and convenience.
• Dashboard Indicator Lights: Provides visual feedback for lock status, door open/close alerts, and other control signals.
• Control Panel LEDs: Used in electronic modules that require a discreet illumination source without drawing significant power.
• Portable Electronics: Suitable for battery‑powered devices where minimal voltage consumption is critical.

Installation Guidelines

Installing the 1.5 V 60 mA key lamp involves a straightforward process that can be completed with basic hand tools:

1. Remove Existing Lamp (if applicable): Unscrew the current indicator light from its socket, taking care not to damage the surrounding housing.
2. Check Socket Compatibility: Verify that the new lamp’s 5 mm screw base matches the existing socket. If a different base is required, use an appropriate adapter or replace the socket entirely.
3. Insert Lamp: Align the filament side of the lamp with the socket and gently tighten until secure. Avoid overtightening to prevent damage to the glass envelope.
4. Reconnect Power Supply: Ensure that the wiring harness is correctly connected, respecting polarity if the lamp is part of a polarized circuit.
5. Test Functionality: Activate the ignition or control system to confirm that the lamp illuminates as expected. Verify brightness and color consistency.

Benefits of Using This Lamp

• Low Power Consumption: At only 60 mA, it draws minimal current from the vehicle’s electrical system, preserving battery life.
• Compact Size: Its small footprint allows for flexible placement in confined spaces without compromising design aesthetics.
• Long Operational Life: With a lifespan of up to 50,000 hours, it reduces maintenance frequency and replacement costs.
• High Reliability: The tungsten filament’s proven durability ensures consistent performance across temperature extremes.
• Easy Replacement: Standard screw base design means that the lamp can be swapped out quickly without specialized tools.

Compatibility Considerations

When selecting this key lamp for a specific application, consider the following factors to ensure optimal performance:

• Voltage Source: Confirm that the circuit supplies a stable 1.5 V DC output; fluctuations can affect brightness and lifespan.
• Current Limiting Resistor: In many automotive circuits, a resistor is used to limit current to 60 mA. Verify that the existing resistor value matches the lamp’s specifications.
• Environmental Sealing: For applications exposed to moisture or vibration, ensure that the lamp housing and socket are adequately sealed.
• Color Matching: If the lamp is part of a multi‑color indicator system, choose a filament color temperature that complements other lights.

Maintenance Tips

Although this lamp is designed for long life, proper care can extend its usability even further:

• Inspect Periodically: Check for signs of filament sagging or glass discoloration. Replace if brightness noticeably decreases.
• Avoid Physical Shock: Handle the lamp gently during installation to prevent micro‑fractures in the glass envelope.
• Keep Clean: Use a soft, dry cloth to wipe away dust from the lamp’s surface; avoid abrasive materials that could scratch the glass.

Conclusion

The 1.5 V 60 mA key lamp offers an efficient, reliable, and space‑saving lighting solution for automotive ignition systems and other low‑voltage indicator applications. Its compact design, combined with a long operational life and minimal power draw, makes it a preferred choice for engineers seeking to enhance user experience while maintaining system integrity.