... 2.More than 10 years factory experience 3.Exproted all over the world with good quality. Application range (JMB,BJZ,DG,BZ ... Model and its meaning (JMB,BJZ,DG,BZ and DM light control transformer) Technical character ... capacity. Working environment (JMB,BJZ,DG,BZ and DM light control transformer) The transformer ... following conditions 1.Altitude should not exceed 2,500m; 2.Ambient air temperature: -25°C~+ ...