The falcon eyes ml-55 55w daylight lamp is equipped with an e27 socket, the ml-55 spiral daylight lamp provides a stable color temperature of 5500k. Output ml-55 The output of this daylight spiral lamp can be multiplied by factor 5 while comparing with a normal light bulb. the output of these 55w spiral lamp is comparable to a 275w light bulb. please note that there are different qualities and price ranges for these lamps available. therefore it's wise to compare the light output (measured in lux) from each lamp and/or brand. the output from this spiral lamp is stated in the specifications below. The ml-55 is 22.5cm in length including the socket (see a) and 7.3cm wide (see b).