SPECTRUM TUBE OXYGEN GAS ,Each

Details

Here is the corrected text: • High-quality design for a greater viewing area • Effectively demonstrates the spectral lines of pure substances • For use with spectrum tube power supply Includes: (1) Spectrum Tube These high-quality spectrum tubes are designed for power supplies holding 26cm spectrum tubes and feature a large 10cm capillary in the center, providing a greater viewing area. They are designed for operation intervals of 30 seconds on and 30 seconds off. The tubes effectively demonstrate the spectral lines of pure substances and require a spectrum tube power supply for use. Note that they are intended for intermittent use only and should not be used as a lamp source. The expected life of these spectrum tubes will vary depending on the gas they contain; however, if used as recommended and not allowed to overheat, their useful life - or the time it takes to detect contamination with usual measuring equipment - is very long.