Assembly Diagram Dear customer: AT + hank you for choosing our products. In order to ensure our safe and convenient installation and use of this product, please strictly follow the following tips for correct operation. I: Precautions: ing installation, professional electrician shall be invited to install R.Do not install the ceiling lamp onto unfinished or pine wood ceiling. B. When replacing the light source, cut off the power supply and do not replace the light source with electricity #4.