A new and distinct cultivar of Poinsettia plant named \u2018PER6401\u2019, characterized by its inflorescences with light red-colored flower bracts with random pale yellow-colored flecks; dark green-colored leaves; uniform, compact, upright and mounded plant habit; early season flowering; natural season flower maturity date is late November for plants grown in Encinitas, Calif. The device further includes coupling optics for coupling light between the transmitting component and the receiving component on the one hand, and an optical waveguide to be coupled thereto on the other hand. The invention also relates to methods for producing a cowpea plant containing in its genetic material one or more transgenes and to the transgenic cowpea plants and plant parts produced by those methods. Then, whenever the file name is displayed in an object managed by the operating system, it will be displayed in electronic ink format.