American Farmworks Solar Fence Energizer T-Post & Fence Post Mounting Bracket. Fits American Farm Works Solar Fence Energizers and Chargers Sizes Five Mile, Ten Mile, Eighteen Mile and Thirty Mile. One Size Fits All Of These: 5 Mile Solar 10 Mile Solar 18 Mile Solar 30 Mile Solar This is a fixed mount set at 45 degrees to make maximum efficiency of the sun without adjusting every season. Designed and manufactured right here at Black Barn Creek Farm Supply in the 🇺🇸🇺🇸 I am an engineering student at Purdue University. Let me know if you have any questions. Thanks!