KVAR Energy Optimizer

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KVAR Energy Optimizer - Power Factor Optimizer Capacitor

The KVAR Energy Optimizer, also known as a power factor optimizer capacitor will allow you to save 6% to 50% on your energy consumption for your home. Save on energy costs, eliminate energy waste, increase the life of your appliances, and surge protection for your home or establishment.

 

[TEG]

KVAR Energy Optimizer

 

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Thanks TEG.
A bit contentious with "hooey", "buy this instead", and "they work great" all in the answers.

Seems like it might be good for some businesses and in extreme weather areas with furnace and AC motors running all the time.