Review on 🌸 eXtremeRate 7 Colors 9 Modes Nintendo Switch Joycon DFS LED Kit - Multicolor Cherry Blossoms Pink Classical Symbols ABXY Trigger Face Button for Joy-Con Controller (Joycon NOT Included) by Brian Schultz

Youtube has an amazingly detailed installation video. Make sure you follow it and make sure you don't accidentally put the original buttons back in. I did it. As a result, the kit's LEDs were somehow spoiled. However, the customer support is amazing and I received a new LED kit for my right joycon in the mail. 5 Stars! It pays a lot to make your joycons unique!