You do not need to purchase a separate watch charger to install in this unit. I uploaded a picture to help you make a better choice regarding the sizes. Im not super tall tho. I run a 25# Pyramid off the front and a 20# pyramid off the back. My hearing is good. Highly recommend this light . Having a physical control for gain levels on the fly is a must if youre looking to Twitch stream. I love these because they are directly from Germany and just wished they had many more colors and designs. It’s not as pictured! But other wise ok