Miniature
Bipin T-5
Min. Bipin
Medium
Bipin T-8/T-10/T-12
Med. Bipin
Recessed Double
Contract T-8/T-12
Recessed D.C.
Slimline
Single Pin
T-8/T-12
Circleline
4-Pin

The size and shape of a bulb is designated by a letter or
letters followed by a number. The letter indicates the shape of
the bulb while the number indicates the diameter of the bulb in
eighths of an inch. For example “T-10” indicates a tubular
shaped bulb having a diameter of 10/8 or 1 1/4 inches. The
following illustrations show some of the more popular bulb
shapes and sizes.

The size and shape of a bulb is designated by a letter or
letters followed by a number. The letter indicates the shape of
a bulb while the number indicates the diameter of the bulb in
eighths of an inch. For example, “T-12” indicates a tubular
bulb having a diameter of 12/8 or 1 1/2 inches. The following
illustrations show some more popular bulb shapes and sizes.

T-5 Miniature Bipin
T-8 Medium Bipin
T-10 Medium Bipin
T-12 Medium Bipin
T-8 Recessed Double Contact
T-12 Recessed Double Contact
T-12 Recessed Double Contact (Jacketed)
T-8 Single Pin Slimline
T-12 Single Pin Slimline
T-8 Medium Bipin U-Bent Lamp
T-12 Medium Bipin U-Bent Lamp (6″)
T-12 Medium Bipin U-Bent Lamp (3″)
T-9 4-Pin Circline
Earth Light Lamps
Earth Light Lamp Bulb Shapes SL/O Earth Light Lamp Bulb Shapes SL/T Earth Light Lamp Bulb Shapes SL/R40 Earth Light Lamp Bulb Shapes SLS/G40
SL/O SL/T SL/R40 SLS/G40
Earth Light Lamp Bulb Shapes SL/O Earth Light Lamp Bulb Shapes SL/T Earth Light Lamp Bulb Shapes SL/R40
SLS 9,11 SLS 15,20,23,25 SLS/R30, R40
PL Lamps
PL Adapter System (First 2)
Earth Light Lamp Bulb Shapes SL/O Earth Light Lamp Bulb Shapes SL/T Earth Light Lamp Bulb Shapes SL/R40
PL-S/SYS PL-C/SYS PL-S
PL Replacement Bulb (All 3)
Earth Light Lamp Bulb Shapes SL/O Earth Light Lamp Bulb Shapes SL/T Earth Light Lamp Bulb Shapes SL/R40
PL-C PL-L PL-T
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