| http://www.w3.org/ns/prov#value | - In an area such as North America where PFC is not currently required, unless a customer is required to have PFC, they would be able to choose a lower cost alternative, typically a power supply that does not have PFC. Also, customers wishing to upgrade a power supply to include PFC are faced with the additional cost associated with such a feature, which is generally undesirable.
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