... , with small size, ease of installation, ease of operation characteristics. Can be used for heating gas (Q), liquid (S), gas (Y ... is the common single-ended device 2-5 times and can meet many of the heating needs of specific occasions, such ... heaters, high temperature equipment. 1. Reference Voltage: 55 V, 110V, 220V, 380V (can be designed and manufactured according to user requirements) 2 ...