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 CFLs, and banned the sale and import of them in 2006–07. California will phase out the use of incandescent bulbs by 2018. The bill aims to establish a minimum standard of twenty-five lumens per watt by 2013 and sixty lumens per watt by 2018. In Connecticut legislation was proposed. A bill was introduced in New Jersey in 2007 that calls for the state to eliminate incandescent bulbs in government buildings over the next three years. In Utah energy efficiency standards for government buildings were passed in 1999 that, in practice, require the adoption of energy efficient technology, including LEDs, as