Grain Vine Solar Light – This solar light is ideally suited for installation on grape trellises. The solar panel bracket and main body can be securely fastened using M2 screws, or alternatively, they can be directly bonded in place with adhesive. The bracket features four alignment holes: two for connecting the bracket to the main body, and two for securing the light housing. For detailed instructions, please refer to the accompanying images. The battery used is a soft-pack lithium-ion cell, which can be directly mounted beneath the light board’s mounting base. You’re free to design your own solar light control board, or you can purchase a pre‑made board and simply wire it in—four mounting holes allow you to secure the board with cord ties. As for the acrylic diffuser, you’ll need to cut it to size yourself.