This battery adapter attaches to the base of a Litepanels LED light and allows you to power the unit using DV batteries. Accepts two Panasonic 7.2 V Li-Ion batteries.This plate allows CGR-120/CGR-220 CGR-DU07/14/21, CGR-D08A/D16A and CGA-D54 Lithium-Ion Battery the power the light.