CFL bulbs

Coiled fluorescent tubes

CFL bulbs are compact fluorescent light bulbs—energy-efficient alternatives to traditional incandescent bulbs that use a coiled tube design to fit standard lamp sockets.

They produce light by passing electricity through gas, requiring less energy than incandescent bulbs but more than LEDs.

Once promoted as an eco-friendly choice, CFLs have largely been displaced by LED technology: We still have some old CFL bulbs in the basement.

Related

color temperature · warm white · mercury · mercury vapor · hazardous waste · dim · flickering · warm-up · socket · glow · hum · greenish · basement · garage · tube · ballast · phosphor · incandescent

Categories
Opposites
lighting technology type

CFL bulbsincandescent bulbs

Lights using heated wire

Edison bulbs · halogen bulbs · candles · gas lamps · oil lamps

Family

CFL, bulb, bulbs, bulbous, fluorescent, fluorescence, fluoresce, fluorescing

Familiarity
Top 500,000
Profile
Used worldwide · Concrete · Everyday, not technical · Rated G