Replacement Light Bulb for Chicago Miniature CM85 Indicator - 28 Volts 1 Watt 7000 Hours

Replacement for the Chicago Miniature CM85 miniature indicator lamp designed specifically for reliable panel and dashboard signaling. This T1.75 tubular bulb operates at 28 volts with a 1 watt rating and draws just 0.040 amps while delivering an impressive 7000 hour service life in demanding environments. The clear finish ensures consistent light output without color distortion, making it ideal for precise indicator functions where visibility matters most. Engineered to match original equipment performance, this direct replacement restores proper illumination in automotive dashboards, industrial control panels, and various instrument clusters that rely on compact wedge base lamps.

Key Features & Benefits

• Operates at 28 volts with 1 watt power consumption
• 7000 hour service life rating
• 0.040 amp current draw
• Clear finish maintains indicator visibility
• T1.75 tubular shape fits designated sockets

Product Specifications

• Volts: 28
• Watts: 1
• Base: WEDGE T1.75-T2 5MM W2.1X4.9D
• Shape: T1.75
• Life: 7000
• Bulb Finish: CLEAR
• AMPS: 0.040

Replacement Compatibility

This lamp fits automotive dashboards, control panels, and indicator assemblies across multiple equipment types requiring a 28 volt T1.75 tubular indicator. Its wedge base design allows straightforward installation into existing sockets without adapters or modifications. Users in automotive repair, industrial maintenance, and equipment refurbishment appreciate the consistent performance and long rated life that reduces replacement frequency. The bulb provides stable operation under typical voltage conditions found in vehicle and machinery electrical systems. Additional applications include marine instrumentation, aviation cockpit displays, and heavy equipment warning indicators where compact reliable illumination supports operator awareness. The robust construction withstands vibration and temperature fluctuations common in mobile and stationary machinery. Installation requires no special tools, simply align the wedge base with the socket and press firmly until seated. Regular inspection of surrounding wiring and sockets helps maintain optimal circuit integrity over extended service intervals. This replacement supports efficient troubleshooting and restoration projects by delivering dependable light output matching factory specifications across varied operating conditions and duty cycles.

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.