ECO-WORTHY Solar Panel Single Axis Tracking System (Increase 30% Power) with Tracker Controller,High Stability, Multi-Angle Adjustment,Ideal for Different Solar Panels, for Yard/Farm/Field/Garden [More power generation] Single-axis tracking mounts maximize efficiency by keeping your solar panels facing the sun at all times. Single-axis tracking mounts can boost the power generation of solar panels by at least 30% compared to traditional fixed solar mounts. [270 adjustment]The single-axis tracking mounting system allows light sensors and controllers to work together to push the rods through 270 of angular adjustment so that the solar panels always follow the sun's rotation, absorbing solar energy from the north-southeast and north-west, thus generating more power. [For different panels] The single-axis tracking racking system is also suitable for different sizes of solar panels.Up to 4 panels can be installed when width of each is less than 22in.Up to 3 panels can be installed when width of each is less than 29.5in.Up to 2 panels can be installed when width of each is less than 44.8in.You can install the board according to the actual needs. [Stability installation]Stability of single-axis tracking mounts still deserves your attention.Wind resistance level L8 and pressure resistance 5400PA are sufficient for most environmental conditions;For the sake of safe use, if the wind speed exceeds 38.5 miles per hour, we recommend that you remove the solar panels..In addition to , the installation is very easy and requires only 4 simple steps: ?Use expansion screws to fix the base? Connect the A-E rods and actuators to the main pole?Installing the Controller?Installation of solar panels. [Easy to use] The setup is very easy, you only need to operate the controller to complete the control of the single axis tracking bracket system.SET Button-Automatically track the solar mode ,FLAT(M)Button-Automatic flat bracket mode. [Quality Support]3+2 years of quality support for the main frame, 3 years of quality support for the controller, and 1 year of quality support for other accessories Shipping We offer FREE shipping on all orders in US We ship within One-Three business days of payment, usually sooner. We use a selection of shipping services such as UPS, FedEx, USPS etc We offer free shipping to the lower 48 states and ship within 1-3 days of payment, usually sooner. For shipping outside of the continental USA International customers are responsible for all duties and taxes. Return You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. Return Policy ? We guarantee against any defective or misrepresented products. The original shipping label must be sent back to us to validate the return. A full refund can only be issued during the first 30 days upon receipt of the product. ? Returns will be voided if the product is mishandled or physical damaged by customer. ? Buyer will be responsible for all kind of return shipping/shipment to the seller for resolving the problem. ? Returns made for all non-defective, undamaged products are subject to a 15% restocking fee. Shipping and handling fees are absolutely non-refundable. If an item is returned to us due to an address issue, we do charge a reshipping fee to reship. If you would like a refund, there will be a 15% restocking fee applied. ? All returned products need to be assigned an RMA # (Return Merchandise Authorization #) prior to return. Please contact us through's messaging system to obtain an RMA# for the return. Any returned product without an RMA # on package will not be accepted or processed? Please contact us before returning. Payment We accept payment by any of the following methods Please pay as soon as possible after winning an sale, as that will allow us to post your item to you sooner! Feedback Customer satisfaction is very important to us. If you have any problem with your order, please contact us and we will do our best to make you satisfied. Feedback ? We appreciate your feedback and our system will automatically leave feedback for you after bid ends. ? Please contact us through message center if you have any problems, we will always try our best for 100% customer satisfaction. Contact Us If you have any queries, please contact us via. We usually respond within 24 hours on weekdays. Please visit our store to check out other items for sale! Thank you for shopping at our store.