{"product_id":"hydrogen-and-helium-spectrum-tube-spt2hh1","title":"Hydrogen And Helium Spectrum Tube - SPT2HH1","description":"During most of their life, stars are mostly composed of hydrogen and generate energy by converting it to helium. Although other elements are present to give individual stars their “fingerprint”  the lines of hydrogen and helium are visible in stellar spectra, as in this tube.\n\nThe glass tubes are 25cm long with the capillary portion about 10cm long. An electrode is sealed in each end and attached to a metal end cap with a loop for convenient hookup to wire connections. Each spectrum tube includes an activity guide.\n\u003cbr\u003e\u003cb\u003eAdditional Info:\u003c\/b\u003e Hydrogen And Helium Spectrum Tube\u003cbr\u003e\u003cb\u003ePackage Size(L x W x H):\u003c\/b\u003e 12 X 2 X 1.5 (IN)\u003cbr\u003e\u003cb\u003eCategories:\u003c\/b\u003e Optics, Spectrum Tubes\u003cbr\u003e\u003cb\u003eHTS Code:\u003c\/b\u003e 9027.90.5495\u003cbr\u003e\u003cb\u003eUNSPSC:\u003c\/b\u003e 4.1e+007\u003cbr\u003e\u003cb\u003eCountry Of Origin:\u003c\/b\u003e INDIA","brand":"United Scientific Supplies","offers":[{"title":"Default Title","offer_id":37112538923177,"sku":"SPT2HH1","price":30.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/5452\/9953\/products\/sptai01-spectrum-tubes-alt.jpg?v=1709868544","url":"https:\/\/labproinc.myshopify.com\/products\/hydrogen-and-helium-spectrum-tube-spt2hh1","provider":"Lab Pro Inc","version":"1.0","type":"link"}