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AvaSphere-50-LS-HAL-12V Integrating Sphere with Halogen Light Source

Product information "AvaSphere-50-LS-HAL-12V Integrating Sphere with Halogen Light Source"

360-2500 nm; Colour Temperature 2,850 K; Stability/Drift <0.1%/h; Internal Diameter 50 mm; Sample Port Diameter 10 mm; Power Supply 12 VDC, 1 A; Dimensions Ø70 mm, 82.5 mm Height

Providing up to 160 times more light on your sample for a reflection measurement relative to Avantes’ standard reflectance integrating sphere, the Avantes AvaSphere-50-LS-HAL-12V is a valuable instrument for reflection applications. It is a combination of an integrating sphere and a halogen light source.

The sphere provides diffused halogen light on your sample without the losses associated with fiber optic coupling. It has a direct collimated SMA-port for collection of the reflection signal with any of Avantes’ AvaSpec spectrometers.

The AvaSphere-50-LS-HAL-12V integrating sphere is mostly useful for dark or low reflecting materials and NIR spectral measurements where signal strength can be limited. It is also very useful for measuring gemstones.

The AvaSphere-50-LS-HAL-12V has an internal diameter of 50 mm, a sample port of 10 mm and a SMA-terminated reference port. The 5 W halogen lamp is stabilized and cooled with forced airflow. A 12 VDC power supply is included. The switch line makes it possible to remotely switch the halogen light source on/off with a TTL signal.

Key Features:

  • Wavelength Range: 360 to 2500 nm
  • Internal Diameter: 50 mm
  • Sample Port Diameter: 10 mm
  • Colour Temperature: 2,850 K
  • Stability/Drift: <0.1%/h
  • Bulb Life: 4,000 h
  • Power Supply: 12 VDC, 1 A
  • Dimensions: 70 mm Diameter, 82.5 mm Height

Applications: Reflection Measurement; Measuring Dark or Low Reflecting Materials; NIR Spectral Measurements; Measuring Gemstones


Please note that Avantes products are available from us only in Denmark, Iceland, Norway, and Sweden.



Manufacturer "Avantes"

Avantes is a leading innovator in fibre-optic spectroscopy, with nearly three decades of experience delivering high-performance spectrometers and fully customized measurement solutions. Headquartered in Apeldoorn, the Netherlands, the company develops and manufactures a comprehensive portfolio of spectrometers, light sources, fibre-optic probes, and accessories for UV, visible, and near-infrared applications.


The company serves customers across a wide range of industries including biomedical research, environmental monitoring, semiconductor manufacturing and food quality control, supporting both standard laboratory setups and OEM integration for high-volume industrial use. With tens of thousands of systems installed worldwide and a global distribution network, Avantes combines international reach with application-driven local support.


Driven by a mission to help humankind live longer and healthier and to support a more sustainable planet, Avantes has built a reputation for service-oriented engineering, deep technical expertise, and long-term partnerships. Its headquarters includes a state-of-the-art Spectroscopy Experience Center that offers hands-on demonstrations, feasibility testing, and collaborative development of tailored measurement setups.


Please note that Avantes products are available from us only in Denmark, Iceland, Norway, and Sweden.



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