Purchased the amber which looks nice at night. Warm white is the usual green white of LED. The plastic looks light purple during the day. Bright if the solar panels are exposed to sunlight. I noticed reviewers who mounted them under the fence rail complained about lack of brightness whereas those who mounted it flush on the post or fence board rated them as bright. 
Each light comes with 4 screws & 4 plastic screw mounts as well as the batteries installed. They look and feel substantial, nice quality at a great price. Purchased multiple sets but have not mounted or tested all of them yet.