Philips 9w LED PL-C 4 Pin CorePro- This lamp has 4 pins in colour 4000k(cool white) with a G24d-3 Rotatable Cap. This is an LED replacement for 26w PL-C Compact Fluorescent. It is Non-Dimmable with an average life of 30,000 hours. 950 Lumen. Energy rating of A+ These Lamps designed as a retro-fit to work with your existing electronic ballast. The lamp performance and reliability will depend on the quality of the existing ballast in the fitting. Length- 163mm Width- 32mm