ITEM NAME:5V700mA (3.5W) Isolated Switch Power Supply / ACDC Step-Down Module 220 rp OXQ.Product list :2pcs ACDC buck module. Switching overshoot: up to 10%. Output 5V, minimum current 0a, maximum current 700mA, peak current 800mA, output range 4.8~5.2v, ripple 60mV. We'd like to settle any problem in a friendly manner.