... % full-load burning test; switching power supply -----Manufacturer in Liushi for 8years, ISO 9001:2008 certified.-----All the items with CE ... range selected by switch Protections: Short circuit / Over load LED indicator for powr on Fixed switching frequency at 37KHz Cooling by free ... ;10%~95 %RH Vibration 10~500Hz,2G 10min./1cycl, period for 60 min, each along X, Y, Z, axes 5.SAFETY ...