WYHP 5A Constant Current/Voltage LED Driver Battery Charging Module Voltmeter Ammeter Input voltage: 5V-30V,Output voltage: 0.8V-29V Load Regulation:  0.5%,Voltage Regulation:  2.5% Operating Temperature: -40 to + 85 Size: 51 * 26.3 * 14 (L * W * H) (mm) Package item include:1pcs