This 5 Watt White 4 Pin PLSE Cool White Compact Fluorescent Lamp is a high quality, long life, energy saving lamp for use with external control gear. The 5 Watt output of this 4 Pin 2G7 lamp is the equivalent of a 25W incandescent bulb. This lamp offers savings of up to 80% in energy usage compared to an incandescent lamp and a lamp life of 8000 hours. This is a popular versatile energy saving lighting solution for general domestic and commercial applications, including Emergency Lighting.