From visible light to near-infrared, that’s where the AvaLight-HAL-S-Mini works best. The AvaLight-HAL-S-Mini is a compact, stabilized halogen light source with adjustable focusing of the fiber connection, maximizing output power at the desired wavelength. Besides that, this versatile light source also has an adjustable electrical power output to provide extra power or longer bulb life. 

A filter slot mounted on the front of the AvaLight-HAL-S-Mini accepts 1″ round or 2″x2″ square filters, to block specific ranges of wavelengths or instantly lower the intensity.

The adjustable focus on the AvaLight-HAL-S-Mini helps you get the most out of your light source: it makes sure all possible power is transmitted through your optical fiber. Bulb replacement is easy and can be done in a matter of minutes.

A combined direct-attach cuvette holder and the attenuator is optionally available (CUV-ATT-DA-HAL). For attenuation, you can use the in-line filter holder (FH-INLINE) or the in-line attenuator (ATT-INL). 

The optical output can be controlled through a dongle at the backside or from your spectrometer. At the lowest setting, the light bulb has a color temperature of 2647K, but provides a significantly longer lifetime. The standard or medium setting changes the color temperature to 2759K and provides around 30% more power with a bulb lifetime of 2000 hours. The high-power setting gives a color temperature of 2879K, about 70% more power compared to the long-life setting with a reduced lifetime of the bulb.

The AvaLight-HAL-S-Mini features an internal TTL shutter, controllable from your AvaSpec spectrometer. This gives you the ability to use the automatic save dark option in our AvaSoft spectroscopy software.

Update 2020:
We have replaced the bulb of the AvaLight-HAL-S-Mini because of the discontinuation of our previous halogen bulb. The new light bulb has been specially developed to be as close to the previous version as possible. The AvaLight-HAL-S-Mini’s appearance and performance are not affected by this change, so any previously installed bases can still be used, even if the light bulb needs replacement. 

Spectral Output AvaLight HAL S Mini
Spectral output of AvaLight-HAL-S-Mini


  • Compact, stabilized halogen light source
  • Internal TTL shutter
  • High-power and long-life settings to suit your specific needs
  • Various accessories available for a complete setup

Product Information

AvaLight-HAL-S-Mini (standard) AvaLight-HAL-S-Mini (long life) AvaLight-HAL-S-Mini (high power)
Wavelength range 360-2500 nm 360-2500 nm 360-2500 nm
Stability < 0.1%/°C < 0.1%/°C < 0.1%/°C
Drift < 0.1%/hour < 0.1%/hour < 0.1%/hour
Time to stabilize < 20 min < 20 min < 20 min
Output to bulb 12.0 VDC/0.87A 10.8 VDC/0.8A 13.5 VDC/0.93A
Bulb life 2000 h 7081 h 440 h
Optical power* 200µm fiber 0.59 mWatt 0.35 mWatt 0.77 mWatt
Optical power* 600µm fiber 4.53 mWatt 3.53 mWatt 5.97 mWatt
Optical power* 1000µm fiber 12.1 mWatt 9.5 mWatt 15.9 mWatt
Bulb color temperature 2,759 K 2,647 K 2,879 K
Power requirement 12 VDC/2.08A 12 VDC/2.08A 12 VDC/2.08A
Temperature range 0-55°C 0-55°C 0-55°C
Dimensions, weight 150 x 78 x 37 mm, 510 g 150 x 78 x 37 mm, 510 g 150 x 78 x 37 mm, 510 g
Lifetime shutter 1,000,000 cycles (typical) 1,000,000 cycles (typical) 1,000,000 cycles (typical)

*Optical power measured from 350-1100 nm

AvaLight-HAL-S-Mini2 10W Tungsten Halogen light source, fan cooled, incl. TTL shutter, needs extra PS-12V/2.08A power supply
AvaLight-HAL-S-Mini2-RM Rack-mounted version of AvaLight-HAL-S-Mini2
IC-DB26-2 Interface cable AvaSpec-USB2/EVO platform to AvaLight-HAL-S-Mini2 for shutter and power setting
AvaLight-HAL-B-Mini2 10W Tungsten Halogen Replacement bulb for AvaLight-HAL, AvaLight-HAL-S-Mini(2)
PS-12V/2.08A Power supply 100-240VAC/12VDC, 2.08A, necessary for AvaLight-HAL-Mini2
DONGLE-H Dongle for high power setting
DONGLE-L Dongle for long life setting
GL-WG305-3 Separate 50 x 50 x 3 mm long-pass filter > 305 nm
GL-KG3-3 Separate 50 x 50 x 3 mm bandpass filter, transparent > 325 nm and < 700 nm
GL-BG28-3 Separate 50 x 50 x 3 mm bandpass filter, transparent > 360 nm and < 500 nm
GL-GG395-3 Separate 50 x 50 x 3 mm long-pass filter > 395 nm
GL-GG475-3 Separate 50 x 50 x 3 mm long-pass filter > 475 nm
GL-OG515-3 Separate 50 x 50 x 3 mm long-pass filter > 515 nm
GL-OG550-3 Separate 50 x 50 x 3 mm long-pass filter > 550 nm
GL-NG9-1 Separate 50 x 50 x 1 mm Neutral Density filter (transmission ca. 10% 400-1100 nm)
GL-NG9-2 Separate 50 x 50 x 2 mm Neutral Density filter (transmission ca. 1% 400-1100 nm)
GL-NG9-3 Separate 50 x 50 x 3 mm Neutral Density filter (transmission ca. 0.1% 400-1100 nm)

More filter types available, please contact us for ordering information.