Residential use fluorescent tube lights and compact fluorescents (“CFLs”) are accepted by the program. Fluorescent lights and tubes can be identified by the marking for mercury (Hg) on the base of the bulb.
 

• Compact fluorescents (or “CFLs”) are energy-efficient lights commonly recognized by their spiral or twist shape; however, but they can also be shaped as loops, or  covered by a bulb-shaped glass cover.
• Fluorescent tubes come in various lengths (4 foot is the most common) and are also identified by their diameter, known as T12s, T8s and T5s. Most are straight but they can be curved or shaped.