... weight,High efficiency; 3.100% full-load burning test; switching power supply -----Manufacturer in Liushi for 8years, ISO 9001 ... / Over load LED indicator for powr on Fixed switching frequency at 37KHz Cooling by free air convection 1 year ... set up tolerance, line regulation and load regulation 9.OUTPUT ModelS-35-5S-35-9S-35-12S-35-15S- ... Rise,Hold Time200ms,100ms,30ms at full load switching power supply