Yuyu brand low pressure sodium lamp ND20 Gp20Na-1 automatic polarimeter bulb

Description

Double Ring Brand Lianyou Yuyu Brand Low Pressure Sodium Lamp ND20 Gp20Na-1 Automatic Polarimeter Bulb
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.
GD20 (Gp20Hg) low pressure mercury lamp
Low-pressure mercury lamps can radiate strong 253.7nm, 404.7nm, 435.8nm, 546.1nm, 577nm, 579nm mercury lines, often used as monochromatic sources in polarimeter, refractometer, polarimeter and other instruments.
characteristic:
Power: 20W
Working voltage: AC15±5V
Working current: AC1-1.3A
Outer diameter: φ28mm
Length: 155mm
Lamp cap: pin / screw
! 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.
Light bulbs and lamps are fragile items. Although we are very professional in packaging, it is inevitable that there will be damage during transportation. Please contact us if the buyer finds damage. Thank you!
Our price depends on your purchase quantity, if you need more, you can contact us to get a good price. Thank you
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