Keystone’s Direct Drive LED tubes and compact lamps eliminate the need for an external driver or ballast. For new construction installations, simply connect the 120-277V line voltage directly to the sockets. For retrofit installations, bypass the existing ballast by cutting the wires and instead connect the 120-277V line voltage directly to the sockets. No ballast or driver is required.
Make sure to check out the “Keystone Direct Drive Brochure” by clicking on the PDF link in the Product Documentation section below.