I bought some extra joycons and needed a charger for them, so I figured one that could charge 4 joycons and 2 professional controllers would work best. I really like the light for joycon chargers because it's very easy to tell when they're charging and when they're fully charged. Red means charging, green is fully charged. However, on a professional controller, it's a small green light that means it's charging, and it goes off when it's fully charged. The charging dock will glow a little so you'll need to hold it when removing the controller. The base is powered by a USB-C input and comes with a USB-A to USB-C cable but no power outlet. I connected it to my TV for charging, but you can also connect it to the Switch dock. I would definitely recommend this charger to anyone considering purchasing multiple additional Joycon and Pro controllers.