electromagnetic ballast /magnetic ballast For FL15-40W / 100% COPPER wire,silicon steel / (H*W):29*41mm / CE standard Magnetic ballast ... ,40W2.Voltage:220V,230V,240V3.Frequency: 50HZ,60HZ4.Material: 100%copper wire, good silicon steel5.Certificate:CE,TUV.Product Details: BallastLamp Package ...