With power indicator, With voltmeter display and the voltmeter can be self-calibrated. Using a more advanced voltage microprocessor, the error of the voltmeter is 0.05V, and the range is 0~40V. (Note: To ensure the accuracy of the voltmeter, please ensure that the input voltage is above 4.5V)Tap the button to switch the measurement input or output voltage, and there is an indicator light to show which voltage is being measured, and save the settings, even if the power is turned off and then turned on again.The voltmeter can be turned off, and it can be easily achieved by pressing the left button when not needed.With terminals, it is easy to use without a soldering iron, and the connection points of the soldering wires are reserved.Input voltage 4.0~38V. (The input voltage must be more than 1.5v higher than the output voltage)The adjustable output voltage range is 1.25V~36V continuously adjustable. (The input voltage must be 1.5V higher than the output voltage)The output current can reach 5A, it is recommended to use within 4.5A.The output power can reach 75W, if it exceeds 50W, please strengthen the heat dissipation of the chip. (That is, a small radiator must be added)High conversion efficiency, up to 96% (efficiency is related to input, output voltage, current, and voltage difference)Working frequency: 180KHZLoad regulation rate S(I)0.8%, voltage regulation rate S(u)0.8%With overheat protection and short circuit protection functions (but there are always accidents in case of short circuit, try not to short circuit)Colour:blueMaterial:PCBSize:6.64 x 3.89CMPackage Contents:1 * 5A Boost ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.