Sodium lamp for polarimeter, ND20 low pressure sodium Lamp
The lamp can radiate stronger 589.0nm, 589.6nm sodium lines, good color, often as a polarimeter, refractometer, polarimeter instruments such as monochromatic light source.
Technical characteristics:
Power: 20W
Operating Voltage: AC15 5V
Working current: AC1-1.3A
The outer diameter : 28mm
Length: 155mm
Lamp holder: Bakelite eight feet
2.2500.23