. Easy installation. I would not recommend beginners to use this particular type of setup as the application and usage requires 240 VAC. However, as the saying goes, if you know how to deal with such AC voltages. It won't be difficult. Just make sure the specifications of that particular transformer are equal to or higher than those required for your particular application. It installed in 10 minutes. And my pool heater is working again. Good luck to all. I highly recommend this piece.