LONGWEI DC Power Supply Variable 30V 10A, 4-Digital LED Display, Precision Adjustable Switching Regulated Multifunctional Power Supply Digital with USB Interface, Disply with Output Power Lab Grade

* High Precision, Wide Range: LONGWEI DC power supply is a professional power supply regulation device that designed with crystal clear, backlit 4-digit LED display of voltage, current, and power. Precise accuracy: 00.01V and 00.01A. You can easily tune it within 0-30V and 0-10A. Very durable and easy to observe even in low light conditions. * 5V/2A USB interface& Auto Power Calculation: What does the USB do? Please don't worry about run out of power now, you can charge your phone, repair phones and more through the 5V/2A USB interface. The hot selling point is that this power supply can calculate output voltage and current into power intelligently and displays the value on its large screen accurately. 110V / 220V input voltage can be switched and can be used worldwide. * High Quality with Essential Safety: Safety is our priority. Grounding wire, The power supply takes the function of limited flow protection, overpower protection, over temperature protection, voltage overload protection. greatly improving ...