Art.NO : ELB36R Name:Electric Firing System Specif:37.5*25.5*13.5 ... read the introduction seriously and keep it. ELB firing system uses 220 V alternate current, with “TEST” function, ... it’s the 4 groups or upwards firing system, Place the switch on ”TEST” position, if the exterior product ... series) After testing is well-balanced, Put the TEST switch on "fire" position, press the corresponding button (or ...