New laws have gone in to place that govern the amount of energy used to generate light:

The rule passed by President Joe Biden’s Department of Energy in April 2022 states that light bulbs must emit a minimum of 45 lumens per watt. A lumen is a measure of brightness.

That effectively outlaws the manufacture and sale of common incandescent bulbs, the kind you screw into the vast majority of light sockets in your home. That’s because traditional incandescent bulbs provide just 15 lumens per watt, according to light bulb manufacturer Philips.

By contrast, most LED bulbs will get you 75 lumens per watt, or more.

Further restrictions will take place in 2024 as well:

In December 2022, the Department of Energy proposed a rule that would more than double the current minimum light bulb efficiency level, to over 120 lumens per watt for the most common bulbs. That would go into effect by the end of 2024 and effectively ban CFL bulbs.