Fluorescent Bases A green color base indicates that the lamp is a low mercury ALTO lamp.
To determine the length of a fluorescent lamp, you do not measure the lamp. The Nominal Length of the bulb is the measurement from back of socket to back of socket on the fixture.

Flourescent Bulb Shapes The letter indicates the shape of the bulb and the number tells us the diameter in eighths of an inch. Example: A T8 Bulb is a tubular shape that is 8 eighths or one inch in diameter.
 
 
 
 
Click below to view these lighting options:

Incandescent bulbs

Halogen lighting

Compact Fluorescent Lamps

High Intensity Discharge Lamps

Specialty Lamps
     
     
 
       
       
       
       
       
           
       
           
       
         
 
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