Comes with galvanised steel frame, solar panel and power regulator. The 10w solar panel will keep a 12v 100Ah tractor battery charged while using the HV12 model energiser. The 10w panel and HV12 model will fence 25 acres from March to October without having to recharge the battery. This will prolong the life of the 12v 100Ah battery as the battery will be discharged once per year.