E27 LED Bulb 1.Base type:E27/E14 2.CE & RoHS approval 3.LED bulb low ... , no electromagnetic interference Ordinary lamps contain mercury and lead elements, electronic ballast of energy saving lamps produces electromagnetic interference!), more lamp beads ... energy saving lamp! 5. Convenient: General standard lamp holder, without ballast, starter. CertificationsCE, RoHS, ISO9001-2008