Osram DNF 150W 21V GX7.9 NAED 54411

Osram DNF 150W 21V GX7.9 NAED 54411 – 150W 21V GX7.9 MR18

The Osram DNF 150W 21V GX7.9 NAED 54411 is a tungsten halogen display/optic lamp designed for professional display/optic applications including projector and projection systems, microfilm equipment, medical, ophthalmic or dental equipment. Key buying specifications for this lamp include 150W, 21V, GX7.9, 300 lm, 25 Hours.

Use this product when your existing lamp, fixture label, or equipment manual matches the lamp code, wattage, voltage, base type, and bulb shape shown below. For specialty optical systems, matching the electrical rating and socket configuration is essential to avoid premature lamp failure or incorrect focal alignment.

Product Overview

This Osram display/optic lamp is built for demanding applications where output, lamp geometry, and socket fit must match the original equipment specification. It is suitable for maintenance replacement in compatible projectors, microscopes, studio fixtures, medical equipment, fiber-optic illuminators, or other specialty optical systems depending on the host equipment requirements.

Why Choose This Product

• Specification-Driven Replacement: The key replacement criteria are wattage, voltage, base type, bulb shape, rated life, and lamp code.
• Display/Optic Application: Designed for professional optical systems where lamp position and output affect performance.
• Commercial Maintenance Ready: Useful for repair shops, facilities, labs, schools, theaters, and service contractors maintaining legacy equipment.

Technical Specifications

Compatible Applications

• Projector and projection systems
• Microfilm equipment
• Medical, ophthalmic or dental equipment
• Projector - 8mm

Cross Reference & Search Numbers

• DNF
• 54411

Before Ordering Verify

• Wattage: Confirm your equipment is rated for 150W.
• Voltage: Confirm the power supply or transformer output matches 21V.
• Base Type: Match the socket to GX7.9 before ordering.
• Bulb Shape / Fit: Confirm the lamp shape and dimensions clear the fixture housing and optical path.
• Lamp Code: Match any ANSI, NAED, HLX, or manufacturer code printed on your current lamp whenever available.

Safety & Installation Guidelines

• Use Approved Fixtures Only: Install only in equipment designed for this lamp technology, wattage, and voltage.
• Do Not Touch Quartz Glass: Use gloves or a lint-free cloth. Skin oils can create hot spots and shorten lamp life.
• Disconnect Power First: Turn off power and allow the lamp to cool completely before removal or installation.
• Verify Enclosure Requirements: Many halogen display/optic lamps must be used only in approved enclosed fixtures.
• Mercury-Free Halogen Lamp: Tungsten-halogen lamps contain 0.0 mg mercury; handle and dispose according to the fixture/equipment instructions and local recycling guidance.

Wholesale & Project Support

ADL Supply supports contractors, repair technicians, laboratories, schools, theaters, maintenance teams, and specialty lighting buyers with replacement lamp sourcing, volume pricing, and project support.

For volume pricing, availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.