These Led Panels essentially relate to whether you want a two- or three-bar fence, the materials you will use, and whether or not to install the fence yourself.
The first choice is fairly simple, because if you do not need to keep any livestock under control than a two-bar fence is probably fine for your needs.
This can look really good, especially in a rural setting, as does the three-bar type.
The three-bar style is much stronger, and this really only needs to be considered if you do need to keep any kind of animals in a paddock or large field.
When it comes to materials, the traditional style is done in wood.
However, there are now many types of artificial split rail fence available, made from various plastics, and these can be a good choice because they are very long-lasting and can also help with keeping the costs down.
This brings us to the third point, and as mentioned above, if you want to have a cheap fence you would do well to look at some of the synthetic materials that are now 20w Led Panel available.