<b>Description</b> <br>These surface mount kits are suitable for commercial or <br>residential use, ideal for offices, schools, hospitals and medical <br>facility where troffer panel drop ceiling light installation is required. <br><br><b>Specific Installation Steps for Reference:</b> <br>1. Assemble three fixing frames together and left one for last assembly. <br>2. Install three of the four plates provided on the ceiling and make <br>sure the angles are square. <br>3. Connect wires and slide your LED panel in. <br>4. Secure the panel with the fourth plate. Then the installation is done. <br><br><b>The surface mount kit Specification：</b> <br>◆Frame Material: Aluminum <br>◆Surface Color: White Coating <br>◆ Frame Outline Dimension: L24 x W24 x H2 inch <br>◆ Frame Internal Dimension: L23 x W23 x H1 inch <br>◆The fifth product picture has an intuitive description of its sizes <br><br><b>Package includes:</b> <br>◆2x2FT aluminum frame: 2 set <br>◆Frame Assembly screw: 2 set <br>◆User's manual：1 pcs <br><br><b>2 YEAR WARRANTY: </b> <br>All surface mount kit products were strictly inspected before <br>sending out, 30 days return policy and 2 Years warranty. Just <br>contact us for any product issues, we will provide you with a <br>professional solution and support.