1. Surface mount design,with advanced craft. 2. With good protection of under voltage,over voltage and over current,it makes machine safe and reliable. 3. Turn-off power supply,and adapt to wide range(160V-250V) 4. Constant current character,arc stability. 5. Intergrated motherboard intergration can greatly improve stability of machine. 6. Advanced IGBT inverter technology,high working frequency,high working efficiency and energy saving. 7. With tri-proof design,it ensures working stable and reliable when in kinds of adverse cricumstances.