300W 20A DC-DC Buck Converter Step Down Module Constant Current LED Driver Power Step Down Voltage Module Electrolytic Capacitor










Description

Reviews 87
Ok
Ok
Works 100% Radiator for 4 kW is too small!
Works well, for a battery charger over 6A, fan cooling is needed. A week later one stopped working, nothing burned out, it just stopped.
Thank you! The order took a long time, but the product fully met expectations. Well packaged, no damage. Fully corresponds to the description. Sincerely grateful
The product is full of ..... Just plugged it in, after 5 seconds the device burned out. I don't know if the seller is to blame or not. But the product itself is of very poor quality
The voltage regulator does not work, I wanted to replace it, even the new one does not work, in the absence of a resistor, it works
the module is absolutely working, but for my work I used radiators of a different size and a cooler in addition
The product is defective, it doesn't work. Voltage is not supplied to it, the switch doesn't respond. Very disappointed.
The converter is defective, it cannot handle a 3A load with a 12v input, the output drops to 10v.
I received everything, not the first to order. Thank you for the work done.
This is not the first order I have made. Thank you for the work done.
everything arrived on time. checked, everything works. great
compact working, thank you.
works flawlessly
I recommend the seller
happy with the product
The product is OK!
Great
























