Black panels do absorb more heat, especially if the back side is also black. Since higher temperatures lower the power output of a panel, black panels may be very slightly less efficient than the equivalent panel with a silver (clear) frame and white back.
Super Solar is one of the most well-known wholesales solar panels suppilers. We offer a wide range of solar panels that come complete with all kinds of solar panel mounting structures. If you are looking for complete solar power systems, please let us know and we are happy to quote a kit for your project.