[Grounding Protection]: To prevent user contact with dangerous voltage when electrical insulation fails,and avoid electrical shorts and power surges. [Tempered Glass]:Dirt-proof and easy-maintenance. Easy to install, the installation only needs to loose and fasten the back and side wires. Ideal For Home/ Offices& Theaters LIVOLO branded merchant,with high-quality and perfect service to ensure that the entire process worry-free users. Any problems, Please feel free to contact us, we will reply your email within 24 hours.