Noble gas as in other metallurgical processes and in the production of silicon for the semiconductor industry. Noble gases are commonly used in lighting because of their lack of chemical reactivity. Argon, mixed with nitrogen, is used as a filler gas for incandescent light bulbs. Krypton is used in high-performance light bulbs, which have higher color temperatures and greater efficiency, because it reduces the rate of evaporation of the filament more than argon; halogen lamps, in particular, use krypton mixed with small amounts of compounds of iodine or bromine. The noble gases glow in distinctive colors when used inside gas-discharge lamps, such
Phase-out of incandescent light bulbs been initiated by the Ministry of Energy where three CFLs will be sold at a subsidized price to the public. Qatar has banned incandescent light bulbs. South Korea has phased out incandescent light bulbs under 150 watts since 2014. The government has prohibited manufacture and import of all incandescent lights. All incandescent bulbs are going to be replaced by LED and CFL light bulbs. Taiwan banned incandescent bulbs in 2012. Tajikistan reportedly banned incandescent light bulbs in 2009 to save energy, though this was criticised as alternatives were expensive at the time. The UAE has banned incandescent light bulbs. Uzbekistan