The Linkstar 85W Daylight Spiral Lamp is equipped with an E27 socket and provides a stable color temperature of 5500K.
 
Output
 
The output of this Daylight Spiral Lamp can be multiplied by factor 5 while comparing with a normal light bulb. The output of these 85W spiral lamp is comparable to a 425W light bulb.
 
The spiral lamp is 23cm in length including the socket (see A) and 8.3cm wide (see B).