We have divided our V-Mount batteries into different classes. The type: Battery V-Mount Size L (over 200Wh) is a very powerful V-Mount battery with over 200Wh. This type is recommended for use with LED lights like Arri Skypanels with highest power requirements. If you have specific questions about batteries or connection options like D-Tap or USB, please contact us. V-Mount batteries are the ultimate mobile power supply for any FIlm or photo set. Many LED lamps, cameras and other devices accept this universal connector or can be adapted to use batteries.