Any notices, requests, claims, demands, instructions and other communications to be given hereunder to either Party shall be in writing and delivered in person, sent by courier (such as Federal Express, UPS, or DHL) postage prepaid, or sent by registered or certified mail, postage prepaid, return receipt requested, in each case to the address of such Party set forth on the first page of this Agreement and (x) in the case of Enphase, to the attention of Bert Garcia, Vice President and Chief Financial Officer, with a copy to Enphase at the address set forth on the first page of this Agreement and directed to the attention of In-House Legal, and to Cooley LLP, 101 California Street, 5 th Floor, San Francisco, California 94111-5800, Attn: Robert L. Eisenbach III, and (y) in the case of Flextronics, to the attention of [________]. Any such notice shall be deemed sufficient if delivered personally or if delivered by any other means upon which the Parties shall mutually agree. Either Party may change the address to which notice is to be given by notice given in the manner set forth above.