Pro lumber yard and lighting dealer Carter Lumber in Ballston Spa, New York, is partnering with New York State Energy Research & Development Authority (NYSERDA) and Rensselaer Polytechnic Institute's Lighting Research Center (LRC) to host the seminar "A Lesson in Lighting" on Saturday, October 20, 2007, at 10 a.m. The free seminar, open to the general public as well as to contractors, will focus on energy efficiency and will be conducted by the LRC at Curtis' Lighting Laboratory in its Ballston Spa facility. Space is limited, so reservations are suggested; call 518-885-5311. For directions, visit Curtis Lumber's website at