The KEYSTONE Electronic Fluorescent Ballast KTEB-120-1-TP-EMI /C is a reliable and efficient lighting component designed for any room. With a voltage of 120V, this ballast is compatible with fluorescent light fixtures and provides a normal output. Manufactured in the United States by the trusted brand KEYSTONE, this electronic ballast ensures rapid start-up and steady performance for your lighting needs. Ideal for facility maintenance and safety, this ballast is a practical choice for businesses and industrial settings. After I ordered this my electrician talked me into replacing my whole light fixture.