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About This Item


Full Description

NEMA LL 9-2011 provides recommendations for dimmable T8 fluorescent lighting systems capable of being dimmed between approximately 100% and 10% of total light output. A T8 fluorescent lamp dimming system may include the following lamp types: 17 W, 2-foot; 25 W, 3-foot; 32 W, 4-foot; or 40 W, 5-foot lamps or other lamp types approved for use on the ballasts.

Document History

  1. NEMA LL 9-2011


    Dimming of T8 Fluorescent Lighting Systems

    • Most Recent
  2. NEMA LL 9-2009

    Dimming of T8 Fluorescent Lighting Systems

    • Historical Version