Used to describe objects that glow due to being hot, like bulbs or metal. The blacksmith's forge was filled with the incandescent glow of molten metal.
Pro Tip 2/3
Not LED
Refers specifically to traditional light bulbs, not modern LED lights. The old theater still used incandescent bulbs for its marquee.
Pro Tip 3/3
Warm Ambiance
The term evokes a warm, cozy atmosphere often created by such glowing light. They used incandescent fairy lights to create a magical ambiance at the wedding.