ITEM NAME:2 Pcs LM2596 DC-DC Step-down Converter Power Module LM2596S Adjustable Buck M5M9 2 Pcs LM2596 DC-DC Step-down Converter Power Module LM2596S Adjustable Buck M5M9 100% Brand New and High Quality.Module Spec:Non-Isolated Step-Down(BUCK) Rectification:Non-Synchronous Rectification Input voltage:3.2--35V Output voltage:1.25-35V(Adjustable);Output current:Rated current is 2.5A,maximum 3A(Additional heatsink is required);Conversion Efficiency:92%(The Highest);Operating Temperature:-45 Celsius To +85 Celsius Color:blue + black Material:plastic + metal Size:42x20mm Package Contents: 2 x Step-Down Power Supply Module.Color:blue + black.