If you are looking to showcase your ads in an outdoor environment to attract clients, then this mockup is for you. It is a realistic mockup of double lamps post banner outside. The file is of a high resolution of 4515 x 3000 pixels and is very easy to edit because it comes in PSD format. You can edit the shadows and lights in addition to adding your own artwork.
Thanks to Graphic Pear for this awesome mockup. Their website has a host of free and premium mockups, so check them out.