ATR Lighting Enterprises Inc.

Glass Shapes

Example of eighths of an inch on a ruler.
A light bulbs glass shape is measured in eighths (1/8) of an inch. For example a T12 is 12-eighths (12/8) in diameter or 1 1/2 inches and a A19 would be 19-eighths (19/8) in diameter or equal to 2 3/8 inches.

Below is a clickable menu of lamp types that will take you to a page of common shapes for that category.

A Shapes P S Shapes
PAR Shapes Reflector Shapes
H I D Shapes Decorative Shapes


What's this
30R20 120V
$0.25
13309ATR
30R20 120V

F20T12/CW
$0.75
19707ATR
F20T12/CW

60A/RS/XL 130V
$0.30
32417OSI
60A/RS/XL 130V

40A/34WMP/99 120V
$0.15
39802GE
40A/34WMP/99 120V

75BR30/FL 130V
$0.85
16681ATR
75BR30/FL 130V

F34T12/850/EW/ALTO
$0.85
37008PH
F34T12/850/EW/ALTO

See All
- Home - - Online catalog - - Log On -
Bookmark and Share