high efficiency 540v to 27v converter

{"cid":"91225946","title":"CTS High-Efficiency 2KW DC\/DC Converter for Electric Vehicles | 96V\/144V\/320V\/540V to 14V\/27V","imgUrl":"https:\/\/img.chinax.com\/nimg\/32\/90\/b7a141e3fb1a63e954e4aef2ed74-200x200-1.jpg","attrs":{"Brand Name":"CTS","Minimum Order Quantity":"2","Delivery Time":"10~20days","Packaging Details":"Carton packaging","Response Time":"\u2264200ms","Warranty":"12 Months","Certification":"CE\/EMC\/LVD\/RoHS","Rated Output Power":"2KW","Typical Efficiency":"96%","Application":"Passenger cars, electric buses, logistics vans, Electric forklifts, aerial platforms, mining vehicles, Golf carts, patrol cars, AGVs.","Supply Ability":"5000pcs\/month","Output Current Range":"0-142A (at 14V) \/ 0-72A (at 27V)","Place of Origin":"China","Rated Input Voltages":"96V \/ 144V \/ 320V \/ 540V","Payment Terms":"L\/C,T\/T","Rated Output Voltage":"14V \/ 27V","Size":"254 x 131 x 95 mm","Name":"DC DC converter","Input Voltage Range":"65-140V \/ 100-200V \/ 220-500V \/ 400-750V","Cooling Method":"Forced Air Cooling (Internal Fan)"}}

{"cid":"91211522","title":"1000W Switching AC DC Enclosed Power Supply 36V 27V Dual Use Of Same Terminal","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/7b\/20761a68d3935006b36cbe2ec6fc-200x200-1.jpg","attrs":{"Price":"Negotiated","Brand Name":"MORNSUN","Model Number":"LMF1000-20Bxx","Minimum Order Quantity":"No","Delivery Time":"Negotiated","Certification":"UL\/CE\/CB","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"500Kpcs\/month","Packaging Details":"Carton packed","Product Name":"1000W AC DC Power Supply with PFC function","Input voltage":"Universal 85~264V AC","Output voltage":"12V\/15V\/24V\/27V\/36V\/48V","Efficiency":"up to 94%","Protection function":"OSC\/OCP\/ OVP\/ OTP","Operating Temperature":"-40~70\u2103","Case Material":"SUS 304","Dimensions":"190.0 x 127.0 x 40.5 mm"}}