2018 all stainless steel case,optimized high voltage package,reduce fever overall,new technology,optimization circuit,work more stable and reliable,with ignition automatic lifting pressure, over current, short circuit, over temperature, open circuit protection,power control through program,and the power supply can automatically adjust the output voltage according to the degree of ignition of the electric field.Realizing real intelligent protection function ,according to user needs,select the corresponding protection function and the ignition sensitivity position by the DIP switch.