🌐EnglishEnglishEspañolPortuguês中文日本語EntityQ3656210· pop 6· linked from 16 articlesPenning mixturemixture of gases used in electric lightingAvailable in 6 languagesEspañol日本語PortuguêsBulgarianNorwegianvia Wikidata sitelinks · CC0ConnectionsGeiger-Müller tubeEntityheliumEntityCategoriesIndustrial gasesNeon lightingNoble gasesPlasma technology and applications