Folder: S.F. Stadiums-Seals.
Written on back: "Lee Pust, job foreman on the Seals Stadium lighting job, hoisting two General Electric typle L-69 up to the mounting structure holds 72 narrow beam type L-69 General Electric floodlights, each with a 1500 watt clear incandescent general service lamp. These are burned at 10% over voltage which gives over 30% greater illumination. Narrow beam floodlights are used in those towers located some distance from the playing field because they give greater light utilization on the diamond. Medium or wide beam floodlights are used in the outfield towers since they are located right on the field. In the Seals Stadium lighting job a total of 308 General Electric floodlights were used; 208 were the narrow beam type and the balance were medium and wide beam.".
