... Brushless and "H" Class Insulation. 4) Water-cooled5) 8hrs operation base tank6) Key start / auto start7) Sound-proof / weather ... pulls down, over speed, over load and over currentb) Operation display: i) Unit voltage, tri-phase load current ... , Exhaust silencer, Flexible pipe, Battery and connecting wires, Operation manual and document.Optional AccessoryEngine coolant and oil heater, Alternator space ...