Detailed Product Description JM B ,B JZ ,D G ,B Z Series illumination transformers: JMB, BJZ, DG, BZ Series Illumination Transformer ... , series transforme r is a transformer by the BK series and protective shell composition, shell on both sides have for the ... -50, BK-100 Control Transformer, LS3-2-type main switch and the composition of the protective housing, so that in the ...