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Your cart is empty.EISCO premium spectrum tubes are of high quality and are designed for power supplies holding 26cm spectrum tubes. Features a large 10 centimeters capillary in the center for greater viewing area. These spectrum tubes are designed for operation intervals of 30 seconds and should be used for 30 seconds on/30 seconds off. These tubes effectively demonstrate the spectral lines of pure substances. Tubes require spectrum tube power supply. For intermittent use only, not to be used as a lamp source. Note: expected life of spectrum tubes will vary depending on the gas they contain. If the tubes are used as recommended and not allowed to overheat, the useful life, or time it takes to detect contamination with the usual measuring equipment is very long. Grades 8-16. For ages 13-21.
Reann EHman
Reviewed in the United States on June 10, 2024
It stopped working after being used for a total of 5 min. It doesn't even light up. It did not burn out.
Nathan Fairchild
Reviewed in the United States on August 7, 2023
I run a planetarium and we purchase these regularly for one of our exhibits. They always arrive in perfect shape and work properly.
Jessica
Reviewed in the United States on January 21, 2015
Bought it for my Chemistry classroom... I wish they told you the color that would be emitted. I had an idea, but was wrong. It gives off white light, which looks cool with our spectrometers, but not that appeasing to our eyes without it.
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