Compact Fluorescent Lamp (CFL) - Energy-Efficient Lighting Solution #2280991 (License: Personal Use)

This black-and-white line illustration depicts a standard compact fluorescent lamp (CFL), featuring its signature spiral-shaped glass tube wrapped around a central base, with visible internal phosphor coating lines and a threaded Edison screw connector. Designed to replace inefficient incandescent bulbs, CFLs use 70% less energy and last up to 10 times longer, making them a pivotal step in residential lighting evolution. Though largely supplanted by LEDs today, CFLs remain relevant in legacy systems and educational contexts.

Used on energy-efficiency guides, lighting comparison pages, sustainability blogs, and educational resources about historical lighting tech; matches user intent to understand or compare lighting types, retrofit options, or environmental impact.