● Main transformer uses super micro-crystal magnetic material.

● Using single tube IGBT, whose quality and price is better than mould IGBT.

● Air passage is of designed by protecting against water, dust and wind erosion, increasing the stability of machine inner working.

● The fan heat diffusion efficiency can be up to 100%, greatly increasing the duty cycle of welder.

● When working under 40 degree environment, the duty cycle is not less than 55%.

● The output efficiency can be up to 93%, the max. power factor can be up to 0.95.

● Stable welding current in spite of input voltage fluctuation.

● With arc force and hot arc starting function, also with VRD function.