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 quality of products. Those CFLs with a recent Energy Star certification start in less than one second and do not flicker. In January 2011, the province of British Columbia banned retailers from ordering 75- or 100-watt incandescent bulbs. Canada's Energy Efficiency Regulations are published on the Natural Resources Canada website. The Canadian federal government banned the import and sale of 75- and 100-watt incandescent bulbs, effective 1 January 2014. On 1 January 2015, 40- and 60-watt bulbs were also banned. Retailers will be allowed to sell their existing inventories imported before the bans. Cuba exchanged all incandescent light bulbs for