Monoprice 104652 Recessed Pro Power Kit with Straight Blade Inlet, White use this recessed pro-power kit with straight blade inlet to install power and low voltage cables behind your flat panel TV WHY DO I NEED THIS? Most local fire codes do not allow high voltage stranded power cables to be run behind a wall Therefore it is a violation to simply run your standard power cords through the wall Power cables for in-wall application should be solid core specifically designed for that purpose Having an electrician come out and tap your electrical system to install an additional output behind your wall mounted display can be costly