Product Description Compact fluorescent lamp with integrated control gear comes with built-in high frequency electronic ballast. These lamps when compared to the incandescent lamps have an impressive average service life up to 20 times longer and consume considerably less energy by up to 80% compared to incandescent lamps of similar light output. These lamps are available in two colour temperatures; Cool Day Light (CDL) or Warm White (WW) giving the customers the respective colour appearances. i.e. White Light and Yellow Light. Shape: Full Spiral Lamp Holder/Base: E27 Lamp Type: T3 Tube Diameter: 17mm Color Temperature: 6500k Plastic Material: PBT