Protect your home's electronics and potentially lower your electric bill with this KVAR unit. It's a whole-house surge protector designed for 200 AMP electrical service that also includes power factor correction technology. It helps fine-tune your home's electrical system, reducing wasted energy (especially from inductive loads like motors in HVAC, refrigerators, etc.). This can lead to savings on your monthly bill and help your appliances run cooler and last longer. Of course, it also provides robust protection against power surges from lightning or grid issues. Installation requires a licensed electrician to wire it into your main electrical panel. Backed by a solid 15-year comprehensive warranty. A smart investment for home protection and efficiency.