Product Overview
GE DNF Quartzline MR18 – 150W 21.5V Precision Halogen (GX7.9 Base)
The GE DNF (ANSI Code) is a high-performance 150-watt MR18 halogen lamp engineered for precision optical systems and specialized industrial equipment. Operating at a unique 21.5 volts, this Quartzline series lamp delivers an intense 3400K color temperature with a calibrated working distance of 69.1 mm. Featuring a vented GX7.9 two-pin base and a CC-8 filament, it is designed for demanding projection and inspection applications where accurate, high-intensity light is critical.
Technical Specifications
| ANSI Code | DNF |
| Wattage / Voltage | 150W / 21.5V |
| Color Temp / CRI | 3400K / 100 CRI |
| Working Distance | 69.1 mm |
| Dimensions (MOL x DIA) | 45.1 mm x 57.2 mm |
| Burn Position | Horizontal (± 15°) |
Primary Applications
- Precision Optics: Optimized for microscopic and industrial inspection systems.
- Industrial Lighting: High-precision equipment illumination requiring specific working distances.
- Projection: Specialty projection units that utilize MR18 form factors.
Burn Position: This lamp must be operated in the Horizontal position only to ensure proper thermal management and lifespan. Enclosed Fixtures: Use exclusively in approved enclosed halogen fixtures designed to contain lamp fragments. Handling: Do not touch the quartz envelope with bare hands; skin oils can cause early failure or lamp shattering. Allow the lamp to cool completely before relamping.
