Osram 64623 HLX EVA 100W 12V GY6.35 Bi-Pin T4 Xenophot Halogen Lamp — NAED 54251 — Microscopy, Dental, Medical & Studio

Specifications

• Bulb Type: T4 Single-Ended Halogen Capsule — Clear (Xenophot HLX)
• ANSI Code: EVA
• LIF Code: M/28
• Trade Name: Xenophot HLX
• Osram Order Code: 64623 HLX
• NAED / Sylvania Ordering Code: 54251
• Osram EAN / Product Code: 4050300012018
• Wattage: 100W
• Voltage: 12V (Low Voltage)
• Base Type: GY6.35 Bi-Pin (2-Pin Glass, 6.35mm pin spacing)
• Initial Lumens: 2,800 lm
• Color Temperature: 3,300K (Warm White)
• Color Rendering Index (CRI): 100 (Perfect color accuracy)
• Average Rated Life: 2,000 Hours
• Filament Design: C-BAR-6 (Single Coil Flat/Oval Transverse)
• Illuminated Field (Filament Dimensions): 4.7mm × 2.7mm
• Bulb Finish: Clear
• Max Overall Length (MOL): 1.716 in (43.6 mm)
• Light Center Length (LCL): 1.17 in (30.0 mm)
• Bulb Diameter: 0.45 in (11.5 mm)
• Burn Position: s90 — Vertical Base Down to Horizontal Only
• Dimmable: Yes
• Energy Efficiency Class: B
• Fixture Requirement: Approved Enclosed Halogen Fixtures Only
• Country of Origin: Mexico

Why the 2,000-Hour Life Stands Out

Most high-intensity specialty halogen lamps in this wattage class are rated 50–300 hours — the EVA 64623 HLX's 2,000-hour rated life is exceptional. This makes it particularly valuable in medical, dental, and laboratory environments where frequent relamping disrupts workflow, increases maintenance labor costs, and risks optical recalibration. For equipment in daily clinical or production use, the significantly longer service interval is a major operational advantage.

What Makes Xenophot (HLX) Different?

Standard halogen capsule lamps use krypton as the filling gas. Osram's Xenophot lamps substitute xenon, which has superior thermal conductivity and reduces the rate of tungsten evaporation from the filament. This allows the filament to operate more efficiently — delivering up to 10% more lumens per watt at the same power consumption, with nearly constant luminous flux maintained throughout the full rated life. Xenophot lamps are identified by the prefix HLX in Osram's catalog.

Compatible Applications

• Microscopy & Laboratory Instruments
• Dental Examination & Surgical Equipment
• Medical Overhead Surgical Lighting
• Fiber Optic Illuminators
• Ophthalmic & Slit Lamp Instruments
• Microfilm Readers & Projectors
• 35mm Slide & Film Projectors
• Studio & Stage Lighting
• UV Curing Equipment

Confirmed Compatible Equipment (Partial List)

• Olympus Microscopes: AHMT, AHS, AHT, AHTM
• Dentech Dental: Ultima II
• KaVo America Dental: Vicon LS II
• Medical Illumination: Centurion Surgical Lights
• Micro Motors Dental: LHS 710
• American DJ: Beamer 16L, Moon Light
• Abstract Entertainment Lighting: Twister 2

Cross-Reference Part Numbers

This lamp is interchangeable with equipment specifying the following part numbers:

• Osram / Sylvania: 64623 HLX / NAED 54251
• Ushio: 1000381 / JC12V-100W / JC-12V/100W/GY6.35
• Philips: 7724 / 34676
• GE / Tungsram: Q100T3/12V/CL / 10348
• Eiko: JC-5057 / JC12V-100H20
• Sunlite: 256768
• General (alt codes): 409850