Description: 【Right Angle for Solar Panels】: This solar angle guide helps you determine the optimal angle for your solar panels to maximize energy output and efficiency. By using this guide, you can ensure your solar panels operate at peak efficiency, saving time and greatly assisting your outdoor activities. 【Easy to Use】: Simply adjust the solar panel so that the shadow of the black dot is in the center of the scale plate, and you will get an ideal tilt angle. The closer the lighting angle is to 90 degrees, the higher the amount of sunlight intake. 【Fits Different Panel Types】: Equipped with a clamp on its back, this solar angle guide is suitable for various types of solar panels including fixed, adjustable, and portable ones. Its lightweight design makes it easy to carry around. 【Quality Material】: Made from quality ABS and acrylic materials, this solar angle guide is sturdy and enough to withstand harsh weather conditions. 【Wide Application】: No matter where you are, with sunshine and solar panels and our solar angle guide, you can get the most solar energy in the shortest time. Size Chart: 4.5cm/1.77inch Package Includes: 1 Solar Angle Guide Note: Please allow slightly errors 1-2cm differences due to manual measurement.