["Name : DC-DC for Buck module\r\nInput voltage :4V ~ 35V\r\nThe output voltage : 1.23V ~ 30V\r\nOutput Current :3A( Max)\r\nConversion efficiency:92%( MAX )\r\nOutput ripple: <30mV\r\nSwitching frequency: 150KHz\r\nWorking temperature: -forty Five~ +85\r\nSize :43mm x 21mm x14mm(Long x Width xHight)\r\nFeatures:\r\n1. the range of input voltage: 3.2 V to 40 V for dc (input voltage must be higher than to the output voltage of 1.5 V above. Can'for t booster)\r\n2. the range of output voltage: 1.25 V for dc to 35 V voltage adjustable, high efficiency (92%) largest maximum output current is 3A.\r\n \r\nInstructions:\r\n1. Power (3-40V), power indicator light, the module is working properly.\r\n \r\n2. Adjust the blue potentiometer knob (clockwise rotation generally boost,counter-clockwise rotationTurn down) and reach with a multimeter to monitor the output voltage required voltage.\r\n \r\nNote:\r\n Current work long hours is recommended for use in less than 2.5A, \r\nwhile adding bulkHeat sink (10W output above),because it is the step-down module,\r\n in order to ensure stable output Set,please keep the minimum 1.5V differential.\r\n\r\nPackage Included: \r\n1PCS x DC-DC Adjustable Step-up Power Converter Module."]