Low Pressure Sodium Lamp ND20 Gp20Na-1 15V20W Polarimeter Refractometer Bulb NEW

Description

Precautions:
The lamp is ignited at the rated voltage. When igniting, the ballast must meet the requirements in series. Do not directly insert the power supply. The second and seventh wires of the bakelite are the lead wires of the lamp, and the rest are empty feet.
Package: 1 X ND20(Gp20Na-1)
ND20(Gp20Na-1) Low Pressure Sodium Lamp
The low-pressure sodium lamp can radiate a strong 589.0nm, 589.6nm sodium line, and has good monochromaticity. It is often used as a monochromatic light source in instruments such as polarimeter, refractometer, and polarimeter.
Characteristic:
Power: 20W
Working voltage: AC15±5V
Working current: AC1-1.3A
Outer diameter: φ28mm
Length: 155mm
Lamp cap: pin
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