IN + input positive and negative input IN- positive output OUT + OUT- output negative! Input voltage range: 5V-60V (50V nominal recommendations less reliable) Output voltage range: 1.25V-30V Maximum output current: 3A Continuous current: 1.2A (total output power less than 20W) Dimensions: L * W * H 4.3cm * 3.0cm * 1.2cm