The AvaLight-XE is a pulsed xenon light source, perfect for ultraviolet applications like fluorescence. When connected to your AvaSpec spectrometer through the IC-DB26-2 cable (sold separately), the flashes are synchronized with the data collected by the spectrometer. The number of flashes per scan can be selected in AvaSoft.

With a special DUV bulb, the AvaLight-XE can be used for deep-ultraviolet applications (below 200 nm). A special direct-attach cuvette holder is available for your fluorescence applications. For transmission measurements, the AvaLight-XE can be used in conjunction with the CUV-ATT-DA, which has an iris attenuator to limit the light output and avoid saturation. 

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Spectral output of the AvaLight-XE


  • Pulsed light source
  • Perfect for fluorescence
  • Direct-attach cuvette holders available
  • Long lifetime

Product Information

Spectral output 200-1000 nm
Total optical power output 39 µJ per pulse (average 66 mW)
Optical power in 200 µm fiber 0.66 µJ per pulse (average 20 µW)
Optical power in 600 µm fiber 3.2 µJ per pulse (average 320 µW)
Optical power in 1000 µm fiber 7.4 µJ per pulse (average 744 µW)
Synchronization input 15 pin sub-D connector, TTL level
Pulse duration 5 µs (at 1/3 height)
Pulse delay 6 µs
Pulse rate (max.) 100 Hz
Bulb life Min. 10 9 pulses
Connector SMA-905 connector
Power requirement 12 VDC/550 mA
Dimensions, weight 175 x 110 x 44 mm, 540 g
AvaLight-XE 2 W xenon light source (200-1000 nm), needs interface cable and power supply
AvaLight-XE-DUV Deep-UV (160-1000 nm) version of the AvaLight-XE, needs interface cable and power supply
AvaLight-XE-B Spare bulb for the AvaLight-XE
AvaLight-XE-B-DUV Spare bulb for the AvaLight-XE-DUV
IC-DB26-2 Interface cable from AvaSpec-USB2/EVO platform to AvaLight-XE
CUV-DA Direct-attach cuvette holder for AvaLight-DHc/XE/LED
ATT-DA Direct-attach attenuator for AvaLight-DHc/XE/LED
CUV-ATT-DA Direct-attach cuvette holder and attenuator for AvaLight-DHc/XE/LED
PS-12V/2.08A Power supply 100-240 VAC/12 VDC, minimal 1.0 A for AvaLight-XE