Description
Replace flickering, burnt-out dash control indicators and specialized heavy machinery display panels with this genuine Sylvania 120MB (MPN: 34503) miniature light bulb. Engineered to commercial-grade standards, this premium incandescent capsule features a high-density CC-7A filament designed to absorb constant mechanical vibration without fracturing. It delivers reliable, targeted 4.5-lumen brightness across an exceptionally long 10,000-hour rated lifespan.
The built-in single-contact
BA9s miniature bayonet base locks firmly into place with a simple quarter-turn twist, preventing connection failures caused by shock, rough terrain, or industrial usage.
āļø Technical Specifications
- Brand / Manufacturer: Sylvania Lighting
- Part Number (MPN): 34503 (Trade Name: 120MB)
- Operating Voltage: 120 Volts AC/DC
- Wattage / Current: 3 Watts / 0.025 Amps (25mA)
- Bulb Shape: T2.5 (T2-1/2 Miniature Capsule)
- Base Type: BA9s (Miniature Bayonet Base, 9mm diameter)
- Filament Configuration: CC-7A
- Brightness: ~4.5 Lumens (0.32 Mean Spherical Candela)
- Average Lifespan: 10,000 Hours
- Maximum Overall Length (MOL): 1.19 inches (30.2 mm)
- Bulb Diameter: 0.33 inches (8.3 mm)
šļø Application & Fitment Data
This 120V specialty bulb is utilized inside high-voltage indicators, instrument display clusters, control panels, and custom lighting fixtures. It acts as a universal replacement for any housing accepting a 120MB, 120PSB, or 34503 trade-number bulb.
- Industrial Equipment: Fits heavy machinery dash displays, vintage factory control boards, marine navigation sub-panels, and commercial emergency warning lights.
- Custom Powersports & Marine Accessories: Used inside aftermarket instrumentation, custom gauge boxes, or auxiliary shore-power monitoring panels on boats and campers running a direct 120V line.
- Cross-Reference Compatibility: Direct substitute for equivalent 120MB bulbs manufactured by EiKO, General Electric (GE), CEC Industries, and Chicago Miniature.
![Sylvania 120MB Indicator Lamp 120 Volt 3 Watt T2.5 Clear Bulb BA9s [10-Pack] photo 1](http://lifeforlifestyle.com/cdn/shop/files/DSC00821_610d2c14-9828-40c9-9fe3-2179af0b6e55.jpg?v=1779563163)
![Sylvania 120MB Indicator Lamp 120 Volt 3 Watt T2.5 Clear Bulb BA9s [10-Pack] photo 2](http://lifeforlifestyle.com/cdn/shop/files/DSC00823_c90cce98-28f8-49fa-9df6-51a54f1cc594.jpg?v=1779563162)
![Sylvania 120MB Indicator Lamp 120 Volt 3 Watt T2.5 Clear Bulb BA9s [10-Pack] photo 3](http://lifeforlifestyle.com/cdn/shop/files/DSC00824_ac19ef20-40a3-4444-8965-0f15f07fc50b.jpg?v=1779563162)