Qiilu Car Fuel Saver Voltage Stabilizer Regulator, Universal Fuel Saver Voltage Stabilizer Regulator Kit W/ 3 Earth Ground Cables for Car Truck(Red)

I ordered this product from Quiilu and when received and installed it failed to display but I checked with VOM and voltages present. I cut it out of my system. When I contacted Quiilu, I was told to send it back for refund. When Quiilu received, they refused to refund my money. Don't use this vendor, they do not support the product!!!!!!!

Works great.

Battery charge shows at the beginning only, and quality could be better.

Piece of crap. I have several ways of reading my voltage and since installing my voltage is even worse. I’m worried that if I leave it on it’s going to break something else. Definitely don’t recommend. It’s not even worthy of 1 star