This depends on your project and the kind of electrical outlets you want the plates for. If you’re using a single light or electrical source, then you might need single plate covers. On the other hand, you may have to choose multiple switch plates to cover more than one sources of light or electrical controls. Nevertheless, regardless of which model you choose, make sure that you pick the best quality cover windows. You can consider a few brands like Eaton, Knightsbridge, ABB, Kramer, Electronics, Neutrik, Whirlwind, and Manfrotto to buy premium quality wall plates online.