This Philips LED tube HF Ultra Output (UO), with a length of 120cm is the ideal alternative of a fluorescent tube T8 (G13 socket) of 36W in a fixture with electronic ballast. This product looks alike the traditional tubes. With a white cool light (4000K), it is suitable for general applications. Besides, it's highly resistant to switching cycles (50000x) with the CE Marking,it complies with RoHS (Restriction of Hazardous Substances, 2002/95/CE) and Kerma-Keur certification, this LED item allows to realise up to 70% energy savings with an average lifetime of 50000 hours.