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Polarimeter Sodium Light Polarimeter Accessories GP20NA-1 Screw Holder Low Pressure Sodium Bulb For Refractometer 15V 20W

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Product Details

The lamp is made of special sodium-resistant glass blown into a tube, the tube contains metal sodium, and the outside is sealed with a glass shell. After ignition, it can emit strong 589.0 nm and 589.6 nm sodium lines. It has good monochromaticity. It is often used as a monochromatic light source in polarimeters, refractometers, polarimeters, and other instruments. It is currently widely used in agriculture, medical industry, video industry, petroleum industry, and health.
1. Lamp characteristics:
Power: 20W
Working voltage VAC: 15 ± 5
Working current AAC: 1-1.3
Outer diameter: 28mm
Length: 155mm-142mm
Luminous center height: 75mm-90mm
Lamp holder model: Screw plug
2. Spectral characteristics: The main spectral lines of the lamp are 589.0nm, 589.6nm


1. When the sodium light lamp is ignited at the rated voltage, it should be matched with a current limiter that meets the requirements of the lamp, otherwise the lamp will burn out.
2. After use, wait for cooling before handling. Avoid metal sodium flow, which affects the performance of the lamp.
3. The waste pipe should be stored in contact with water and fire to avoid explosion and fire. Disposal method: The waste pipe must be fully mashed and placed in the square. A person at a distance of 5 meters must use a rubber tube to waterproof and flush.
4. Bakelite foot sodium lamp 2 and 7, the two feet are wiring pins, the others are empty feet.

Item Specifics
Brand Name: 
Model Number: 
 20 W
Working voltage VAC: 
Outer diameter: 
 28 mm
Luminous center height: 
 75-90 mm
Lamp holder model: 
Main spectral line: 
 589.0nm, 589.6nm
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