The Spa Eclipse is perfect for just about any spa and using DEL's patented CD Chip technology has many advantages. It is energy efficient, which means lower operating costs, and because there is no starter or ballast, the isolated circuitry of the Spa Eclipse eliminates voltage spikes. The Spa Eclipse chip is also water resistant and generates substantially less heat than UV systems. The Spa Eclipse has a viewing window which allows you to see the CD energy field. Unlike UV Lamps that falsely indicate that there is still ozone, the CD Chip diminishes its glow when a replacement chip is needed at 9,000 hours. NOTE: This unit comes with a Mini JJ cord and an included parts bag.