The wire should be supported via "arms" that hoist it above the top rail

So you can achieve quite the display with many feet of fence topped with solar post caps

as each cap draws 0

Simple and easy to install and maintain

And the best part is this cap does not require electrical connection so you can forget about all the hassles involved with wiring and plug-ins (not to mention ramping up your electric bill)

Speed Bump 6' AFC-034 The wire should be supportedReflective for Night Time Visibility Traffic Accessories Speed Bumps Made from 100% recycled rubber. Reduces speed to 2 5 mph. High visibility at night. Will NOT warp, crack, chip or rot. Can be installed on any road surface. Resistant to ultraviolet light, moisture, oil, and extreme temperatures.