Compact Fluorescent Lamps (CFLs) are long life, energy saving lamps. However, they require fittings with appropriate lamp holders, and appropriate ballast (a device used to provide the starting voltage and regulate the current to the pins on the lamp). 4 Pin lamps can be dimmed when operated on an electronic dimmable ballast.
Compact fluorescent bulbs use less energy than standard incandescent lamps, turning up to 25% of the electricity they use in to light (20% more than incandescents) as well as lasting up to 20 times longer.
At lampshoponline we hold vast stocks of all compact fluorescent lamps. We supply branded but still cheap cfl light bulbs.