1.Design with foot wheel, light weight, easy to carry; 2.Battery compartment protection design, sun-proof; 3.3.5KW rated output power, can withstand the impact of twice of the rated power, suitable for AC 220V power supply equipment; 4. It can power our 48V cordless DC welding machine to weld 1.6-3.2mm electrodes with stable current and good welding results. 5. No noise, no emission, no vibration, is a safe and efficient high-power power supply equipment; 6. The equipment is economic and energy consumption is only one tenth of traditional petro-powered generator; 7. The device has complete safety protection functions about under voltage, short circuit, overcharge, over discharge, overload and overheating;