My yard is overly colorful! I have numerous solar garden stakes, so I jumped when I saw these. They was easy to install! You can use either the stake or screws, but I chose to use the stake. The solar panel is large, so it can soak up the rays and power up faster. In adiditon, it is adjustable. Therefore, you are able to hide it some in your landscaping. The color changing effect is super fun! Most spot lights are plain and boring, but this one is color changing which makes it more unique. The solar spotlight has two brightness settings which you can change with a simple push of a button. As far as the light lasting, it will not last all day (I really haven't saw one that does). However, it will last for hours. In my opinion, this spotlight is more for decoration and making your yard colorful. As far as safety spotlights, I would personally stick with a clear spotlight because they are brighter.