This HME Sol-Pak is a solar battery pack that is designed as a sustainable solution for all trail cameras especially wireless/cellular cameras. Nothing is more frustrating that going to check your game camera in your favorite spot only to arrive and see that it has dead batteries. Or having to return to your favorite spot over and over again to change out batteries. This Sol-Pak from HME fixes that issue. Hook this Sol-Pak with your game camera and leave all those worries behind. It includes adapters to ensure proper fitting into most 12V external power jacks. Mounts to trees and posts.