... type: polycarbonate alloy , GRP 3.AC220V 4.ExedmbIICT4/DIPA20TA,T6 Explosion proof fluorescent fitting Type BYSApplication1.Used in Zone 1,Zone2, Zone20 ... -7,IEC60079-18,IEC61241-1-1 2 Explosion protection:ExedmbIICT4/DIPA20TA,T6 3 Rated voltage:AC 220V 4 Tube options:T8 Bi ... of buckle structure easy to open and close tightly.6 Plug- in terminals easy to wiring.7 Name brand fluorescent tubes ...