Please read the entire description and check the prices from the dropdown list before placing the order. Most questions are answered here. Listed prices are the unit prices for each item. For example, please enter an order quantity of 3 if your door number is 777. The 8" size numbers are the most popular and most cost-effective. The main picture of "27061" is forged silver metallic surface finishing. Construction: The numbers are made from 100% Acrylic (a bullet-proof material used for bank windows) never rusts, and last longer than metals. LED stripes are sealed inside the body channels covered with a translucent plexiglass from the back. Water-tight and weatherproof. They are finished with a textured metallic coating with 5 Antique looking colors to match your wall color: Silver, Iron black, Bronze, Copper, and Gold. Installation: Each number is pre-installed with 1/4" size anchors on the back. Trace the anchor locations on a piece of paper and mark them on the wall. Drill 1/4" holes on the wall to receive the anchors. By adjusting the anchor insertion deepness you can keep the numbers a short distance from the wall to allow more light to come out from the back. Electrical Connections: a pair of 12" to 20" long lead wires (vary by the size of the numbers) come out from the back. Most people drill a thru-hole to lead the wires to the inside of the house. Connect all numbers by wire color code. You may lay the lead wires on the front wall and paint them the same color as the wall to avoid drilling extra holes. A free plug-type 110-240Vac to 12Vdc power adapter is provided for each order. You can use your timer (like the Xmas lighting control timer) with the plug-type adapter to set up the numbers on/off. Other power adapters such as Wiring type (wiring to the home line), Low-voltage type (connecting to 12-28V low-voltage yard line or the old doorbell transformer), or Solar power are available to order from the dropdown list. No matter how many digits your door number is, only one power adapter is needed per mounting location. If you order a dusk/dawn switch, it will be preinstalled in one of the numbers. 6" size numbers do not have enough room to accommodate the dusk/dawn device inside. Instead, an external dusk/dawn switch will be provided and prewired for 6" size numbers at the same cost. Only one dusk/dawn switch is needed per order (no matter how many digits of the door numbers). The solar power comes with a remote controller and built-in dusk/dawn switch so you do not need to order an additional dusk/dawn switch if you order the solar power option. Solar-powered LED is not recommended unless other power options are not available at the location (such as a mailbox far away from the house). The output of solar panels varies by the weather. Referring to the listing pictures, please leave us a note of your preferences before checking out: 1) the door number, 2) the font type, 3) the LED color, and 4) the finishing color. If you forget to specify your selections or not answering our reminder message, the order will be canceled. You are welcome to replace the order at any time. Please don't hesitate to contact us should you have any special requirements, such as a color/font/size not listed here. Product Warranty: One year of free replacement, and three years of free repair under normal wear and tear. Customized products are not resellable, return is NOT acceptable. We try our best to provide quality products at affordable costs. Minor tool-handling marks may exist on the side or back, which are not noticeable from 3 feet away. Your understanding is highly appreciated.