The Osram 64634 (EFR) Halogen Bulb is sometimes referred to as ''HLX64634'' which means that the bulb has Zenophot gas which replaces the krypton gas that is normally in most halogen light bulbs. This is considered by many customers to produce brighter light. 

HLX XENOPHOT™ Technology for Improved Performance

The HLX identifies lamps that employ XENOPHOT™ technology, an innovation first introduced by OSRAM. In XENOPHOT lamps, krypton—the normal fill gas used in halogen lamps—is replaced with xenon gas. The xenon reduces the rate of tungsten vaporization and allows for a higher filament temperature. Depending on the application, XENOPHOT can either improve luminous efficacy or can extend the lamps service life.

Lamp Bulb Technical Specifications  :

- Watts: 150 Watt 
- Volts: 15 Volt 
- Base: GZ6.35 
- Avg. Life Hours: 50 
- Shape: MR16 Reflector 
- Type: Halogen
- Type of Current  : AC 
- Working Distance: 1.260(in) 
- Working Distance: 32(mm) 

Cross Reference and Key Words :

Microscope, Scientific, Medical, and Dental Applications: EFR, 64634, 6423 FO, Bosworth 92102 Superlight, Coe-Light 4070110, Healthco HCOB400711VCL Illumination Wand HO, Kulzer 2045 Translux EC & II, Litema Pluraflex HL150, Marco OM 2020, Vivident 7110 Heliomat H10, Olympus 8S401, Volpi 10001-111, Wild/Leitz 997-053, Zeiss 31-01-98, Philips 6423, GE EFR, Ushio EFR, Kondo EFR, Sylvania EFR, Olympus CLK-3

***NOTES FOR CHANGING A MICROSCOPE LIGHT BULB***

Being in the Microscope Business for over 25 years Specialty Optical has seen all kinds of specialty bulbs that need replacement in optical systems. From multi-million dollar photolithography machines to simple student microscopes there are some basic guidelines that can be followed to ensure safety and extend the life of the bulb.

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