EX-10.21 LETTER AGREEMENT DATED 12/14/01

EX-10.21 6 b48986a5exv10w21.txt EX-10.21 LETTER AGREEMENT DATED 12/14/01 EXHIBIT 10.21 [Color Kinetics Letterhead] December 14, 2001 Graham & Liz Allison 69 Pinehurst Road Belmont, MA 02478 Dear Graham & Liz, In connection with your purchase of $1,000,000.00 in Series E Preferred shares of Color Kinetics Incorporated (the "Company"), the Company agrees to use its best efforts after the closing of the Series E Financing to secure the election of one person nominated by you and mutually agreed upon by the Company to the Company's Board of Directors. We look forward to continuing our successful relationship with you. Sincerely, /s/ George G. Mueller George G. Mueller Chairman & CEO Color Kinetics Incorporated 10 Milk Street, Suite 1100 Boston, MA 02108 ***@***