If you are looking for a basic energy-saving light bulb in a compact design, the Philips Economy Stick light bulb is a great "value for money" choice. With a lifespan of up to 6 years, this compact bulb will save up to 80% energy, saving you money on your electricity bills. This is the 8 watt model producing the equivilent of 42 watts of light, with an E27 edison threaded cap. Specification Cap-Base: E27 edison threaded capBulb Shape: StraightNominal Lifetime (Nom): 6000hSwitching Cycle: 6000 XColor Code: "Warm White"Correlated Color Temperature (Nom): 2700KRated Power: 8wWattage Equivalent: 42WDimmable: No