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Hamamatsu Standard Deuterium lamp (X2D2 lamp), 2000 h - L9518

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X2D2 Series Deuterium lamp (L2D2 lamp)

Standard X2D2 High Brightness Deuterium Lamp - 33 W

Spectral distribution : 185 nm to 400 nm, Aperture diameter : 0.5 mm, Guaranteed life : 2000 h

E955-50 lamp housing is also available for this lamp.

Please note that Hamamatsu Lamps are made to order with an approximate 2 - 3 month lead time.

Hamamatsu Part Number: L9518

L9518 Lamp Specifications:

Series: X2D2
Electrode Structure: Standard
Window Material UV Glass
Spectral Distribution (Short): 185 nm
Spectral Distribution (Long): 400 nm
Aperture Diameter *a: 0.5 mm
Output Stability Drift Max.: +/- 0.3 %/h
Output Stability Fluctuation (p-p) Typ.: 0.005 %
Guaranteed Life *d: 2000 h
Required Discharge Starting Voltage Min.: 400.0 V dc
Anode Current: 300 +/- 30 mA dc
Tube Drop Voltage Typ.: 90.0 V dc
Filament Warm-up Voltage: 2.5 +/- 0.25 V dc, V ac
Filament Warm-up Current Typ.: 4 A dc, A ac
Filament Warm-up Time: 20 s
Filament Operating Voltage: 1.7 +/- 0.2 V dc
Filament Operating Current Typ.: 3.3 A dc
Applicable Power Supply
AC Input Type: C9559
DC Input Time: M9521

Hamamatsu Lamp Product Line

  • L2D2 Long Lifetime Deuterium Lamps - 30 W 
  • X2D2 High Brightness Deuterium Lamps - 33 W
  • S2D2 Compact Deuterium Lamps - 5 W to 7 W
  • H2D2 High output Deuterium Lamps - 110 W

D2 Lamps for High Performance Devices

These L2D2 lamps are deuterium lamps specifically developed for analytical instruments.They offer excellent features essential for light sources in analytical instruments such as long service life, high stability and high output.

X2D2 lamps

The X2D2 lamps emit UV light with high luminance - twice that of the L2D2 lamps. The X2D2 lamps help enhance the sensitivity and throughput of various instruments utilizing UV light.

The X2D2 lamps (high brightness and long lifetime deuterium lamps) deliver unparalled brightness twice that of L2D2 lamps. while still maintaining the high stability and long lifetime offered by the cnventional deuterium lamps. These characteristics will enhance sensitivity and throughput in various photometric instruments.

X2D2 Lamp Specifications

Perameter L9518 L10804 L9519 L10904 L9941 Unit
Type Standard See-through Standard See-through Standard -
Window material UV Glass Synthetic silica MgF2 -
Spectral distribution 185 to 400 160 to 400 115 to 400 nm
Aperture diameter 0.5 mm
Output stability at 230 nm Drift (Max.) ± 0.3 %/h
Fluctuation (p-p) Typ. 0.005 %
Guaranteed life at 230 nm 2000 h
Discharge starting voltage (Max.) 400 V dc
Anode current 300 ± 30 mA dc
Tube voltage (typ.) 90 85 V dc
Filament ratings Warm-up Voltage 2.5 ± 0.25 V dc
Current (Typ.) 4 A dc
Operating Voltage 1.7 ± 0.2 V dc
Current (Typ.) 3.3 A dc
Filament warm-up-time (Typ.) 20 s 
Power supply C9559, M9521 -
Recommended operating temperature 245 to 290 °C

PLEASE SEE OUR ADDITIONAL IMAGES TAB FOR FURTHER TECHNICAL INFORMATION AND DIMENSIONAL OUTLINES.

Additional Hamamatsu Lamps Available:


  • Model: L9518
  • Manufactured by: Hamamatsu

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