This 18W Very Warm White 2700K 4 Pin PLC Compact Fluorescent lamp offers savings of up to 60% in energy usage compared to an incandescent and an impressive 8000 hour lamp life. The 18 Watt output of this lamp is the equivalent of a 75W incandescent bulb. This is a high quality high efficacy long life lighting solution perfect for applications where a compact light source is required. This lamp requires external control gear to operate.