Review on eXtremeRate 7 Colors 9 Modes Button Control LED Kit for Nintendo Switch Joy-Con Controller - Multi-Colors Luminated ABXY Trigger Face Buttons - JoyCon NOT Included by Chris Drury

I have some experience with repairs, disassembly etc. This one Project turned out to be a little more monstrous than expected. After all, LEDs look fantastic. The problem arose from improper operation of the left LED circuit. I went through three of them before I found the real culprit. Nintendo recently revised the left joystick PCB layout (I'm not sure if it's the right one as I've had no problems with that setup). I have uploaded pictures of the various boards in circulation. If you have the right one, DO NOT connect the battery. It shorts out the LED controller and frys the element cluster at the base of the circuit. These schematics were designed for previous PCB assemblies. I gave this item 5 stars because of the company's customer service. They worked with me to figure out the problem and easily sent me loads of replacement ribbons while we fixed the issues I was having. It looks like they didn't know about the upgraded board and anyone could have made that mistake since the I/O cable connectors didn't change their position. BTW, the adhesive is a bit lacking, so I'd recommend buying double-sided electronics tape (which we use to stick the screens back onto the device) for a firmer hold.