Xenophoto lamp 20W 6V G4 M/30 ESB 64250

Technical specifications of the OSRAM 64250 lamp

The OSRAM 64250 lamp is characterized by compact dimensions that make it perfect for integration into specialized equipment where space is limited. With a diameter of just 9 mm and a total length of 31 mm, this lamp offers maximum installation versatility.

The G4 base is a widely used standard in the low-voltage halogen lamp sector, characterized by two pins with a 4 mm distance. This type of connection ensures stable and secure electrical contact, particularly important for professional applications where interruptions or malfunctions are not tolerable.

The color temperature of 3350K produces a warm white light, while the color rendering index Ra 100 ensures perfect color reproduction, a fundamental parameter in medical and photographic fields where color perception must be absolutely faithful to reality.

Professional applications: medical and entertainment sectors

The OSRAM 64250 lamp is specifically designed for two main application sectors: the medical-scientific field and the professional entertainment sector. In the medical field, this lamp is mainly used in surgical microscopes, endoscopy equipment, medical fiber optic lighting systems, and colposcopes.

Medical applications require high quality standards regarding:

• Light stability: absence of flicker or variations that could compromise the observation of microscopic details
• Perfect color rendering: essential for the correct identification of tissues and anatomical structures
• Reliability over time: 100-hour life that guarantees prolonged use before replacement

In the entertainment sector, this lamp is compatible with professional spotlights produced by leading brands such as Coemar, TAS and Teatro, as well as for slide projectors used in theatrical, television, and photographic contexts. The low-voltage 6V power supply ensures greater operational safety compared to high-voltage lamps, an aspect particularly relevant in work environments where operators must frequently handle the equipment.

Advantages of low-voltage halogen lamps with xenon gas

OSRAM halogen lamps with Xenophot technology offer numerous advantages that differentiate them from standard solutions. The use of xenon gas increases luminous efficiency, making it possible to obtain more light with the same energy consumption, a fundamental aspect both for reducing operating costs and for limiting the heat generated by the equipment.

One of the main advantages is full dimmability: these lamps can be adjusted from 0 to 100% of light intensity through professional dimmer systems, allowing the lighting to be adapted to specific operational needs. In the medical field, this feature allows the surgeon or doctor to modulate light intensity based on the type of procedure or observation, while in the entertainment sector it allows the creation of customized scenic effects and light transitions.

Other significant advantages include:

• Immediate start-up at full brightness without warm-up times
• Absence of mercury and hazardous substances in the composition
• Universal operating position that allows installation in any orientation
• Compatibility with standard 6V low-voltage power supplies

OSRAM's German manufacturing quality also guarantees precise dimensional tolerances and consistent performance throughout the lamp's service life, minimizing the risk of unwanted variations in light quality.

Construction characteristics and filament design

The construction design of the OSRAM 64250 lamp is optimized to guarantee optimal performance in reduced spaces. The axial filament with a diameter of only 0.8 mm allows excellent focusing of the light beam, an essential characteristic for applications requiring precision in light direction such as microscopes and optical systems.

The high thermal resistance quartz glass capsule allows the filament to reach high temperatures while maintaining excellent durability over time. The light center length (LCL) of 19.5 mm is a critical parameter for the correct positioning of the lamp in optical equipment, ensuring that the filament is located exactly at the focal point of the system.

The M/30 designation indicates that this lamp can operate in any position, an important flexibility for integration into equipment with different mechanical configurations. This mounting universality simplifies equipment design and facilitates maintenance and replacement operations.

Correct installation and maintenance

Installation of the OSRAM 64250 lamp requires some fundamental precautions to ensure safety and optimal durability. Before proceeding with replacement, it is essential to completely disconnect the equipment from the electrical power supply and wait for the previous lamp to cool down, considering that during operation it reaches very high temperatures.

The G4 base involves simple pressure insertion of the two pins into the lamp holder. It is important to verify that the insertion is complete and that the contacts are clean to ensure optimal electrical connection. During handling, it is recommended to avoid touching the quartz capsule with bare fingers: skin grease can cause localized overheating points that drastically reduce the lamp's lifespan. Always use clean gloves or a soft cloth.

Regarding power supply, it is essential to use stabilized 6V AC/DC power supplies with adequate power (minimum 20W plus a 20% safety margin). Voltage fluctuations can compromise both light quality and lamp life. In the medical field, where operational continuity is critical, the use of redundant power supplies or UPS systems is recommended to ensure power even in case of mains interruption.

The declared life of 100 hours must be considered under optimal usage conditions. In professional medical applications, it is good practice to record usage hours and schedule preventive replacement before reaching maximum life, to avoid interruptions during delicate procedures.

Comparison with other low-voltage lighting solutions

In the landscape of low-voltage lamps for professional applications, the OSRAM 64250 is positioned as a specialized solution for equipment requiring compact dimensions and 6V power supply. Compared to other lamps with bayonet base or different bases, the G4 format offers the advantage of extreme miniaturization while maintaining high luminous performance.

Comparing Xenophot halogen technology with modern LED solutions, it emerges that halogen lamps still maintain distinctive advantages in specific application contexts. The Ra 100 color rendering of halogen lamps remains unsurpassed by most LEDs, which typically achieve values between Ra 80 and Ra 95. For medical applications where color fidelity is critical, this represents a decisive element.

However, it is important to consider that LED lamps offer significantly longer life (up to 50,000 hours versus 100 hours for halogens) and reduced energy consumption. The choice between halogen and LED technology therefore depends on the specific priorities of the project: absolute light quality and low initial costs favor halogens, while long-term durability and energy savings point toward LED solutions.