This Spectrum Tube Holder has it's own power supply and is fitted with a safety door. Designed for use with 260mm long spectrum tubes, firmly preventing the user from touching the electrodes. The matt black colour eliminates the distracting ambient light and the soft spring action protect the tubes from breakages. Spectrum Tubes are not included.Operates on 220V AC via the Mains Supply.Full instructions supplied.Technical Specifications:Input Power: 220V AC, 50HzOutput Rated: 5000V - without Spectrum Tube, 1000V at 10mA with Spectrum TubeOperating Temperature: 10°C - 40°CStorage Temperature: -20°C - 40°CSpectrum Tubes are available as a bundle of 4, or to purchase separately:Bundle of 4 (Hydrogen, Neon, Nitrogen, Oxygen) - B8R06832Argon - B8R06989Helium - B8R06986Hydrogen - B8A46539Krypton - B8R06991Mercury Vapour - B8R06990Neon - B8A46565Nitrogen - B8A46541Oxygen - B8A46553Xenon - B8R06992
