The ban is part of broader measures to make homes greener, which includes a plan to replace conventional gas boilers with potentially more expensive alternatives. U.K. households account for about 40% of the nation’s total emissions, and Prime Minister Boris Johnson wants the country to become “net zero” by 2050.

LED lights already account for about two-thirds of U.K. bulb sales. They last five times longer than traditional halogens, produce the same amount of light but use as much as 80% less power.

“By helping ensure electrical appliances use less energy but perform just as well, we’re saving households money on their bills and helping tackle climate change,” Energy Minister Anne-Marie Trevelyan said in a statement.