Small Edison Screw (SES) [E14]
 
Warm White 2700K

This bulb is approximately 103mm high by 42mm wide.

Self-ballasted fluorescent lamp with up to 80% energy saving.

Energy saving lamps, also called compact  fluorescents lamp (CFL) or low energy bulbs, saves energy by using the same technology as a fluorescent tube to generate equivalent light outputs to a conventional tungsten filament bulb but with a significantly lower power requirement. Due to the technology they also offer huge increases in life expectancy over conventional lamps. The marked wattage of all energy saving  lamps is much lower than the equivalent conventional bulb therefore costing less per hour.