... -5500k Cool White: 6000-7000K8, Replacement of Fluorescent Tube 20WSpecifications1,Base:T82,Lifespan:50,000H 4.Certificate:CE & RoHS5,Energy-saving ... (-20°C to 50°C)Advantages of LED tube *Wide beam angle 270 degree* High quality material make it super long life time ... the lamp, ballast and starter (12) As a cold light source, LED light will not make the items due to irradiation bleaching Certificates ...