The circuit board adopts 1.6 thick gold plating process;The input uses a replaceable fuse to protect the supply and equipment;The whole version of electrolysis adopts imported patch, low resistance and high frequency capacitor, which makes the ripple drop to freezing point; voltage, current, undervoltage protection (MPPT is more suitable for solar charging).Output error indicator, when the output voltage drift is too serious, and the fault occurs when a short circuit occurs;The oxidized heat sink dissipates heat, and the heat dissipation effect is that of the natural aluminum sheet;The inductor is made of iron-silicon-aluminum and has a lower heat generation;You are welcome to purchase and use our voltage module. Please read the following instructions carefully. Otherwise, the company will not guarantee or replace the damage caused by improper use.This module belongs to the automatic step-up and step-down supply. When the input voltage is lower than, higher than, equal to the output voltage, the output voltage can be kept stable.when the output is set to 12V and the input voltage is changed between 5 and 32V, the output voltage is at 12V. There are current, voltage, undervoltage protection, output indication, fault indication function, and the output has overcurrent and over Pressure and short circuit protection; all components can reach industrial applications; can be used in a variety of applications, such as charging, high- LED driver, equipment supply, vehicle supply.Electrical parameters:1. Input voltage: DC5-32V, the recommended voltage is above 10V2. Output voltage: DC1V-30V continuously adjustable;3. Output current: 10A (MAX) within 7A for a long time;4. Output : long-term 80W, 130W, more than 80W, please strengthen the heat;5. Output ripple: 50mV (12V to 12V, measured by 5A);6. Input reverse connection protection: None, if necessary, connect Schottky diodes at the input end;7. Output anti-backflow: no, if used for battery charging or load is self-charged emotional load, please connect Schottky diode in series at the output;8. Size: 77.6x46.5x15mm9. Short circuit protection: Yes;10. Weighs about 45 grams;Colour:blueMaterial:plasticPackage Contents:1 x voltage regulator charging moduleOnly the above package content, other products are not included.Note: Light reflection 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.