1、Improve Energy: Solar angle guide helps you find the best angle for your solar energy system (perpendicular to the sun) no matter which latitude you are. You can catch every ray of light and concentrate the sun's rays onto the surface of your solar panel. Gives you a way to maximize solar exposure and shorter solar charging time. 2、High Accuracy Measurement: This device is crafted with advanced technology to provide high accuracy measurements. It eliminates guesswork and ensures your solar panels are perfectly angled to captures the most light. 3、Simple to Use: Clip the solar panel angle tool to the edge of the solar panel, then adjust the angle of the solar panels. When the black dot shadow on the dial is close to the black cross in the middle, it is 90 degrees. The closer the angle of sunlight is to 90°, the higher solar energy intake you will get. 4、Portable Design: Its compact and lightweight design makes it easy to carry around. You can easily pack it in your tool bag and take it wherever your solar panel installation project takes you. 5、Widely Application: You can use it on foldable portable solar panels or solar mounting bracket. And it easy to install and remove, you only need one solar alignment tool to adjust the angle for every solar panels you have. Item Type: Solar Angle Guide Material: Plastic Product Diameter: Approx. 4.5cm/1.8in Gross Weight: 18g/0.6oz 1 x Solar Angle Guide 1 x Accessories