EL Panel (AKA Electroluminescent Panel), is a flat panel which lights up when an high frequency is applied. It makes a great backlighting effect, thin light up poster, and more. Today, we are seeing EL Panels in many applications; from backlighting of automobile instruments, to billboards. EL Panels are extremely energy efficient and have a long lifetime. A typical EL Panel will last around 10,000 hours and can have lifespans up to 40,000 hours, depending on the necessary brightness.