Power Factor Websites:

  • ltipowersystems.com

    LTI Power Systems Manufacturer of UPS, Inverters & Static Switches

    American UPS and Inverter Systems Built with the Quality and Dependability You Expect

  • ballastdesign.com

    Electronic Ballast Design for HID Lamps

    A practical overview of high efficient electronic ballast design for HID lamps. Presenting specific features of HID lamps and related ballast requirements, and energy saving...