This 4 Pin G24Q-2 PLC Compact Fluorescent Lamp is an ideal energy efficient alternative to a standard incandescent of fluorescent bulb. This 18 Watt Very Warm White lamp measures 138mm x 35mm its compact size perfectly suited to many domestic and commercial applications or where space is limited. This is a High Colour Rendering High Efficacy Long Life Lamp that save 60% on energy usage compared to a standard incandescent bulb.