For information call 650-961-9031|Order in-stock products at

The Hamamatsu L7820-02 deuterium lamp light source is calibrated in the UV range from 200 nm to 400 nm as Japan Calibration Service System (JCSS). Manufactured upon receiving order.


  • Light level control of light source,
  • Sensitivity control of optical sensor,
  • Light intensity measurement and studies of photoreactions,
  • Quality control of photometric equipment.


  • Certification of accreditation with JCSS logo mark is attached,
  • Along the expansion of range of Measurement Act,
  • Certification of accreditation is integrated to JCSS,
  • Wide spectral range,


  • Light intensity drift (Typ.)



Lamp Wattage

30 W

Spectral Distribution

185 nm to 400 nm

Calibrated Range 1

200 nm to 400 nm (10 nm intervals)

Type of Calibration

Spectral irradiance

Calibration Unit


Output Window Material (Lamp Housing)

Synthetic quartz

Output Window Diameter

25 mm

Optical Axis Height

140 mm (150 mm including plastic feet)

Warm-up Time

10 minutes or more


Hour display (lamp housing)

Input Voltage (AC)

100 V to 240 V, 50 Hz / 60 Hz

Power Consumption

90 VA

Cooling (Lamp Housing, Power Supply)

Forced air cooling

Ambient Operating Temperature

0 °C to +40 °C

Operating Range During Calibration


+23 °C to +27 °C


20 % to 70 % (no condensation)

Dimensions (excluding projecting parts) (W x H x D)

Lamp Housing

100 mm ´ 280 mm ´ 100 mm

Power Supply

117 mm ´ 90 mm ´ 200 mm

Carrying Case 2

480 mm ´ 380 mm ´ 205 mm


Lamp Housing

Approx. 2.2 kg

Power Supply

Approx. 2.2 kg

Total Weight 3

Approx. 9.5 kg

Recalibration Interval 4

100 hours in operation

Guaranteed Lamp Service Life 5

500 hours

Current Stock:
HAM L7820-02
0.25 LBS
6.00 (in)
4.00 (in)
4.00 (in)
Manufacturer's Warranty: The manufacturer warrants its products to be free of detects in materials and workmanship for the stated period from date of original purchase invoice. All warranties or merchant ability and fitness for any purpose and all other warranties, expressed or implied, except those expressly set forth herein, are deemed waived and excluded. Manufacturer's duty under the warranty is limited to replacement and/or repair of the defective part at their exclusive option. Seller shall not be liable for any expenses or damages incurred by the purchaser except as expressly set forth herein, and in no event shall seller or manufacturer be liable for any special, incidental or consequential damages of any kind. This warranty does not supersede any statutory rights that may be available in certain countries. The foregoing manufacturer's warranty of shall be voided, and of no force and effect if buyer has modified or damaged the product.

No Reviews Write a Review