nLIGHT, Inc. entered into Third Amendment to the Second Amended and Restated Loan and Security Agreement dated September 24, 2018 with Pacific Western Bank. The Amendment extends the maturity date of the Loan Agreement to September 24, 2024, removes LIBOR references and sets certain financial covenants of the Company. The foregoing description of the Amendment is a summary, is not complete, and is qualified in its entirety by the terms and conditions of the actual Amendment, a copy of which is filed with this Current Report on Form 8-K as Exhibit 10.1 and is incorporated herein by reference.