NEMA LL 9-2009
Dimming of T8 Fluorescent Lighting Systems

Standard No.

NEMA LL 9-2009

Release Date

2009

Published By

NEMA - National Electrical Manufacturers Association

Status

Be replaced

Replace By

NEMA LL 9-2011

Latest

NEMA LL 9-2011

Scope

This Standards Publication provides recommendations for dimmable T8 fluorescent lighting systems capable of being dimmed between approximately 100% and 35% 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.

NEMA LL 9-2009 history

• 2011 NEMA LL 9-2011 DIMMING OF T8 FLUORESCENT LIGHTING SYSTEMS
• 2009 NEMA LL 9-2009 Dimming of T8 Fluorescent Lighting Systems