Come to our QW-MS305D 30V 5A Adjustable DC Stabilizer Power Supply (US Standard)、 which will help you a lot in adjusting power supply. Made of high-quality materials、 this power supply features high strength that it is durable in use. For professional design、 this power supply performs well on stability and reliability. Designed with 4pcs potentiometers、 it offers high precision and stability in adjustment. In addition、 with small size、 it is also easy to install and use. It is worth having!                                    <p>Features</p>            <ul><li> Portable size、 practical and convenient to operate</li><li> Auto shift between voltage stabilization and current stabilization</li><li> It has rather low ripple voltage</li><li> LED screen displays output voltage and current</li><li> Selectable over-current protection、 widely applied to daily fields</li><li> Adjustable design could meet your various demands</li><li> With 4pcs potentiometers、 respectively for output voltage and output current</li><li> High precision and stability   </li></ul>                                                            <p>Specifications</p>            <table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Model</td><td width="365"> QW-MS305D</td></tr><tr><td width="131"> Rate Output</td><td width="365"> 0∥30V、0∥5A</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (10.15 x 4.96 x 6.18)" / (25.8 x 12.6 x 15.7)cm(L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 65.05oz / 1844g</td></tr><tr><td width="131"> Display</td><td width="365"> 3 LED Display</td></tr><tr><td width="131"> Adjustable</td><td width="365"> Yes</td></tr><tr><td width="131"> Plug</td><td width="365"> U.S Standard    </td></tr><tr><td width="131">Input Voltage</td><td width="365"> 220V÷10%、47∥63Hz / 110V÷10%、47∥63Hz </td></tr><tr><td width="131"> Working Conditions</td><td width="365"> -10→∥40→</td></tr><tr><td width="131"> Storage Conditions</td><td width="365"> -20→∥80→25.8</td></tr><tr><td width="131"> Working Relative Humidity</td><td width="365"> ＜80%</td></tr><tr><td width="131"> Storage Relative Humidity</td><td width="365"> ＜80%25.8    </td></tr><tr><td width="131"> Power Effection</td><td width="365"> CV●0.05%+1mV、CC●0.05%+10mA</td></tr><tr><td width="131"> Load Effection</td><td width="365"> CV●0.1%+5mV、CC●0.1%+10mA</td></tr><tr><td width="131"> Ripples & Noises</td><td width="365"> CV●10mV(RMS)、CC●20mA(RMS)   </td></tr></tbody> </table>                                                            <p>Package Includes</p>            <ul><li>1 x DC Power Supply </li><li>1 x Power Line</li><li>2 x Test Line</li><li>1 x User Manual</li></ul>