Fangrui Product Details 1.enhanced Solar Energy Efficiency: Our Solar Angle Guide Provides A Way To Shorten Solar Charging Time By Helping You Find The Angle For Your Panels And Concentrating The Suns Rays Onto The Surfaces Of The Solar Panel. It Catches Every Ray Of Light And Provides Maximum Sun Exposure To Improve Energy Output And Efficiency. 2.optimal Sunlight Intake: As The Shadow Nears The Dials Center, Clip This Tool To Your Panel; An Easy Tilt Adjustment Ensures Excellent Solar Capture As Angles Approach 90. 3.excellent Durability: Crafted For , This Solar Angle Guide Boasts A Robust Stainless Steel Clip, Ensuring A Secure Fit On Portable Panels; Its Uv- Materials Protect Against Scratches, Enhancing Panel Life. 4.effortless Solar Positioning: Modernize The Angle Adjustment Of Your Solar Panel With This Widely-used Solar Calibration Tool. Effortlessly Install And Remove It Without Requiring Extra Tools. Designed For Use With Foldable Portable Solar Panels Or Mounting Brackets, This Tool Saves Both Time And Effort.