Standard "General Service Lamps" (GSLs) were phased out because they are highly inefficient, wasting roughly rather than light. By 2028, efficiency standards in the U.S. are scheduled to increase further to 125 lumens per watt , focusing the market almost entirely on high-efficiency LEDs.
: Plant "grow" lights, black lights, bug lights, and heavy-duty "rough service" bulbs. can you buy incandescent light bulbs
While you cannot buy standard incandescent bulbs for general home lighting due to energy efficiency bans, you can still legally purchase for specific tasks. Where to Buy Them Standard "General Service Lamps" (GSLs) were phased out