MEAN WELL Switching Power Supply, RSP-1000-48, 48V dc, 21A, 1kW, 1 Output, 127 → 370 V dc, 90 → 264 V ac uk.rs-online.com/web/p/switching-power-supplies/0150966?searchId=6a635ebe-b55f-4ff4-9b56-57c83fd51861&gb=s