Compact Fluorescent Lamp (CFL) - Energy-Efficient Lighting Diagram #2200752 (License: Personal Use)

This black-and-white line drawing depicts a standard compact fluorescent lamp (CFL), featuring a tightly wound spiral glass tube attached to a plastic base with integrated electronic ballast. The design highlights the energy-saving structure that replaced incandescent bulbs in residential and commercial lighting before LEDs became dominant. Internal details like the phosphor coating and electrode placements are implied through simplified linework.

Used on educational, sustainability, or home improvement pages to explain lighting technology evolution; supports user intent around energy efficiency, bulb replacement guidance, or environmental impact comparisons.