Gas-discharge lamp they create light from electricity considerably more efficiently than incandescent light bulbs. The father of the low-pressure gas discharge tube was German glassblower Heinrich Geissler, who beginning in 1857 constructed colorful artistic cold cathode tubes with different gases in them which glowed with many different colors, called Geissler tubes. It was found that inert gases like the noble gases neon, argon, krypton or xenon, as well as carbon dioxide worked well in tubes. This technology was commercialized by French engineer Georges Claude in 1910 and became neon lighting, used in neon signs. The introduction of the metal vapor lamp, including
Phase-out of incandescent light bulbs light bulbs in September 2018. The provincial government of Nova Scotia stated in February 2007 that it would like to move towards preventing the sale of incandescent light bulbs in the province. In April 2007, Ontario's Minister of Energy Dwight Duncan announced the provincial government's intention to ban the sale of incandescent light bulbs by 2012. Later in April, the federal government announced that it would ban the sale of inefficient incandescent light bulbs nationwide by 2012 as part of a plan to cut down on emissions of greenhouse gases. On 9 Nov 2011, the federal government approved a proposal