Lamp Guide: Fluorescent

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

SL/O	SL/T	SL/R40	SLS/G40

SLS 9,11	SLS 15,20,23,25	SLS/R30, R40

PL Lamps
PL Adapter System (First 2)

PL-S/SYS	PL-C/SYS	PL-S
PL Replacement Bulb (All 3)

PL-C	PL-L	PL-T