L-faster 36V/48V 800W Electric Motor Controller: Optimal Brush DC Motor Speed Control ideal for Electric Tricycle, Scooter, and Brushed Controller Review

Controller short circuit after 5 days! Sends full power to the engine, almost ended up in the ER because I couldn't stop the gas! The manufacturers did not even test the device before delivery. I had 2 more of these, one stopped after 2 weeks, the other after 6 months. Contacted the seller and they were rude! Only buy if you love wasting money or if you end up committing suicide by accident! Never again! No Stars!

Arrived just over a week. No instructions, no English. The indicator light shows the battery voltage, in my case 36V, so it's useless for the indicator light, but plan on using it for the battery gauge instead. Otherwise everything works. It seems like a great value. I deducted a few stars, although due to the lack of information not 5V but 36V of the display circuit and the lack of English. Use it for a kids karting project we are doing together. It looks like it should work, and even if it…

I used this controller to upgrade an old 20" Ev Global Ebike from 24v to 36v. Once you sorted out the wiring (good luck) everything worked fine. We rode at least a few hundred miles, maybe a thousand, from bike lanes in Northeast Florida, Clearwater, to the shores of Alabama Bay and everything we found between them, pedaling at a top speed of 22 mph. What has happened is that now if you run the engine over 3/4 throttle for more than a few seconds the controller cuts out. Unplug the battery and…