... 9W, 11W, 15W, 18W, 20W2.Tube diameter: T2(7-8mm)3.Color temperature (K): 2700K, 4000K, 6500K4.Base: E14, E275 ... of complete quality assurance system. We have CE&EMC, RoHS and ISO9001 certifications Item Wattage Color Temperature Tube Dia. Base ... 40490*238*157 50 SL-S15 18W 2700-6500K 7-8mm E14/E27/B22 900 8000H 108 45540*263 ... *157 50 SL-S15 20W 2700-6500K 7-8mm E14/E27/B22 950 8000H 112 45540* ...