Not everything here is accurate but this is something that I've found useful!

Please note that this list currently doesn't contain Japanese market specific sizes!

Preheat:

Lamp	Wattage	Length (in)	Discharge length (in)	Lamp voltage	Lamp current	Year of release	Notes
f4t5	4	6	~4.5	31	~0.200	1941
f6t5	6	9	~6	48	~0.145	1940
f8t5	8	12	~10.5	58	~0.137	1941
f13t5	21	13	~19.5	90	~0.170	1941-1946
f10t8	13.5	10	~12	~50	~0.240
f13t8	13.5	13	~11.5	~37	~0.350
f13.5t8	13	13.5	~11.5				Made mostly by Westinghouse from the 1960's to 1980's.
f14t8	14	15	~12	~64	~0.234	1960-1969
f15t8	15	18	~16	~55	~0.355	1938	One of the og fluorescent lamp size
f18t8	18	24	~21.5	~48	~0.670	Early 1960's
f19t8	19	26, 28	~23.5, ~25.5				f19t8 (26 in) is the same as f26t8
f20t8	18	24	~21.5	~48	~0.670		Same as f18t8
f21t8	21	30	~27.5				Used in older vending machines
f22t8	22	26	~23.5	~92	~0.670		Used in older vending machines
f24t8	18	24	~21.5	~48	~0.670	Early 1960's	Same as f18t8
f30t8	30	36	~33.5	~200	~0.15	1938	One of the og fluorescent lamp size
f36t8	36	48	~45.5	~88	~0.41	1980-1938
f58t8	58	60	~57.5	~110	~0.67	~1980	f19t8 (26 in) is the same as f26t8
f70t8	70	72	~69.5	~115	~0.800		Lamp voltage + current from f72t12
f14t12	14	15	~12	~41	~0.341	1938	Came out a few months later than the og 4 sizes
f15t12	15	18	~16	~48	~0.330	1938	One of the og fluorescent lamp sizes
f20t12	20	21, 22, 24, 26	~18.5, 19.5, 21.5, 23.5	~57	~0.380	1938	One of the og fluorescent lamp size
f25t12	25	28, 30, 33	~25.5, 27.5, 31.5	~69	~0.360
f30t12	30	36	~33.5	~70	~0.425	1938
f40t12	40	48	~45.5	~100	~0.430	1938
f65t12	65	60	~62.5	~260	~0.250
f60t17	60	36	~32		~1.500	1940-1945
f65t17	65	36	~32		~1.500	1940-1945
f90t17 (100 watts)	100	60	~54	72	~1.450	1940

Rapid start:

Lamp	Wattage	Length (in)	Discharge length (in)	Lamp voltage	Lamp current	Year of release	Notes
f80t5	80	60	~55.5			Early 1990's	Rapid start HO lamp
f40t8	40	48	~45.5	~106	~0.420
f40t10	40	48	~45.5	~95	~0.420
f25t12	25	36	~33.5	~69	~0.360
f30t12	30	36	~33.5	~70	~0.425	1938
f34t12	34	48	~45.5	~104	~0.430
f40t12	40	48	~45.5	~100	~0.430	1938
f54t17	180	54	~48	~124	~1.450	1956

Slimlines:

Lamp	Wattage	Length (in)	Discharge length (in)	Lamp voltage	Lamp current	Year of release	Notes
f42t6	25	42	~39.5	~125	~0.200		Out by 1948
f64t6	30	64	~61.5	~200	~0.200		Out by 1948
f42t8	23	42	~39.5	~86	~0.265		'Energy saving' version of f42t6
f48t8	30	48	~45.5	~113	~0.265
f60t8	55	60	~67.5	~207	~0.265
f72t8	35	72	~69.5	~132	~0.265	1944
f96t8	~50	96	~93.5	~188	~0.265	1944
f24t12	20	24	~21.5	~48	~0.430		Banned from US in 1995
f36t12	30	36	~33.5	~69	~0.430
f42t12	35	42	~39.5	~81	~0.430
f48t12	39	48	~45.5	~48	~0.430
f60t12	50	60	~57.5	~116	~0.430
f64t12	50	60	~57.5	~120	~0.430
f72t12	56	72	~57.5	~130	~0.430
f84t12	65, 75	84	~81.5	~151	~0.430		These lamps come at 75w too (arc voltage, 174)
f96t12	60, 75	96	~93.5	~139, ~174	~0.430

T5 HE:

Lamp	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f14t5	14	22	~19.5	~84	~0.165	1999-2006
f21t5	21	34	~31.5	~124	~0.165	1999-2006
f26t5	26	46	~43.5			2009-2016	'Energy saving' version of f28t5
f28t5	28	46	~43.5	~164	~0.170	1999-2006
f35t5	35	58	~55.5	~202	~0.175	1999-2006

Energy saving:

Lamp	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Not-so energy saving version(s)	Notes
f26t5	26	46	~44.5				f28t5
f13t8	18	13	~15.5	~37	~0.350		f15t8, f18t8
f15t8	24	15	~21.5	~55	~0.355		f18t8
f25t8	48	25	~45.5				f28t8, f30t8, f32t8, f36t8, f40t8
f28t8	48	28	~45.5	~101	~0.275		f30t8, f32t8, f36t8, f40t8
f30t8	48	30	~45.5				f32t8, f36t8, f40t8
f32t8	48	32	~45.5	~137	~0.150		f36t8, f40t8
f36t8	48	36	~45.5	~88	~0.410		f40t8
f40t8	60	40	~57.5	~150	~0.265		f50t8, f51t8, f58t8
f50t8	60	50	~57.5	~137	~0.150		f51t8, f58t8
f51t8	60	51	~57.5				f58t8
f17t12	24	17	~21.5				f20t12
f25t12	36, 48	25	~33.5, ~45.5	~69	~0.360		f30t12 (36 in), f32t12, f34t12, f35t12, f40t12
f32t12	48	32	~45.5				f34t12, f35t12, f40t12
f34t12	48	34	~45.5	~104	~0.430		f35t12, f40t12
f35t12	48	35	~45.5				f40t12	Very early version of the f34t12, made till the mid 1980's
f58t12	60	58	~57.5				f65t12
f90t12	60	84	~57.5	~60	~1.600		f90t17
f90t17 (82 watts)	60	82	~54			1975-1977	f90t17 (85 watts), f90t17 (90 watts), f90t17 (100 watts, f100t17)
f90t17 (85 watts)	60	85	~57.5			1948	f90t17 (90 watts), f90t17 (100 watts)
f90t17 (90 watts)	90	60	~54			1953	f90t17 (100 watts, f100t17)

T5 HO:

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f24t5	~22	24	~19.5	~74	~0.295	Early 1990's
f39t5	~34	39	~31.5	~116	~0.325	Early 1990's
f49t5	~34	49	~31.5				Made by GE
f54t5	~45	54	~42.5	~118	~0.455	Early 1990's
f80t5	~58	80	~55.5			Early 1990's	Rapid start HO lamp

See more below @Beta 5 and @Multisubject 's replies!!

Interesting list, hopefully it can grow as more info is added, it would be quite useful to have something like this as a permanent feature to the site, perhaps also distinguishing which ones are predominantly US and EU market lamps and which ones are common across both.

As for T5 HE I believe they came out earlier than 1999, possibly around 1994 (which may also apply to T5 HO too), and regarding the energy saving variants both Philips and GE had their take on them, the Philips wattages differing slightly to the GE ones which can be seen in this PDF on the T5 Wattmiser range
https://docs.rs-online.com/501c/0900766b80d11960.pdf

OMG OMG thanks so much for sharing these! I have been looking for those larger T5, T6, and T5HO specs for a while, I will add them to my public lamp spec sheet later when I get a chance if that's okay. May I ask if these are measured specs or are they taken from datasheets? If so what datasheets? This is immensely helpful, you are definitely getting credit for this on the front page

T-8 to T-12 HO: (Common T-12s are from the mid 1950s)

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f48t8	48	44	~45.5	~102	~0.430
f60t8	60	55	~57.5	~127	~0.430
f72t8	72	65	~69.5	~151	~0.430
f96t8	96	86	~93.5	~200	~0.430
f18t12	18	25	~22.5	~31	~0.800
f24t12	24	35	~21.5	~43	~0.800
f36t12	36	44	~41.5	~55	~0.800
f42t12	42	50	~39.5	~62	~0.800
f48t12	48	60	~45.5	~75	~0.800
f60t12	60	70	~57.5	~87	~0.800
f64t12	64	75	~61.5	~87	~0.800
f72t12	72	85	~69.5	~106	~0.800
f84t12	84	100	~81.5	~125	~0.800
f96t12	96	110	~93.5	~137	~0.800
f100t12	72	100	~69.5	~90	~0.800		Streetlighting HO lamp

VHO (and SHO, DHO, etc.) lamps:

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f95t5	~46	95	~45.5
f24t12	24	70	~20	~46	~1.500	Early 1960's	Reflector f24t12/vho made for mining applications
f48t12	48	110	~44	~73	~1.500	Early 1960's
f60t12	60	135	~56	~90	~1.500	Early 1960's
f72t12	72	160	~88	~106	~1.500	Early 1960's
f96t12	96	215*	~92	~143	~1.500	Early 1960's	*Westinghouse's were 219w
f108t12	108	125	~104	~83	~1.500	Early 1960's
f117t12	117	132	~113	~88	~1.500
f120t12	120	135	~116	~90	~1.500

Sign lamps: (U bent lamps are missing)

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f108t12	108	125	~104	~83	~1.500	Early 1960's
f117t12	117	132	~113	~88	~1.500
f120t12	120	135	~116	~90	~1.500

Tanning lamps:

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Notes
f10t5	12	10	~9.5			Used for face tanning
f59t12	59	80	~56.5
f71t12	71	100	~68.5
f73t12	73	100	~70.5
f79t12	79	180-230	~76.5

Power-Twist:

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f30-34t9	48	30-34	~45.5	~200 (f30t8), ~104 (f34t12)	~0.150 (f30t8), ~0.430 (f34t12)		Most likely made from (at least the 1990's) till 2000; Referred to as the Durotest Vita-lite Plus Energy Twist; Uncommon lamp
f36t10	48 (unconfirmed)	36	~45.5			1961?	Most likely made from (at least the 1990's) till 2000; Uncommon lamp, came with cathode shields
f20t12	24	20	~23.5	~57	~0.380	1961
f40t12	48	40	~45.5	~100	~0.430	1961

PowerGroove lamps:

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
f48pg17	48	110	60	~74	1.5	Mid 1950's to 1960's
f72pg17	72	160	72-84	~107	1.5	Mid 1950's to 1960's
f96pg17	72	160	215	~163	1.5	1954

Other linear tubes:

Code	Length (in)	Wattage*	Discharge length (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	'Energy saving' version	Year of release	Notes
f13t2								Very uncommon lamp
f5t5	7.5	5	~6					Used in certain studio lighting
f7t5	10.5	7	~9				1960's	Made for certain vending machines during the 1960's
f10t5	16.5	10	~15
f11t5	17.5	11	~16
f2t6	2.25	2			~2?			Primarily made for aircraft display lighting
f15t6	18	15			~16.5
f20t6	24	20			~22.5
f25t6	30	25			~28.5
f30t6	36	30			~34.5
f40t6	48	40			~46.5
f16t8	26	16	~63	~0.253	~23.5		~1967?	Made for specific appliences including stoves and (clothes) washers
f19t8	26, 28	19	~63	~0.253	~23.5, ~25.5		~1967?	Very little info on this lamp, 26 in version is 'energy saving' version of f22t8
f22t8	26	19	~92	~0.160	~23.5	f19t8 (26 in)	~1967?	Very little info on this lamp
f35t8	~58	35			~55			Very little info on this lamp
f20t9	24	20	~55	~0.360	~21.5		1980's	Made mostly by Lampi during the 1980's
f30t9	36	30	~81	~0.370	~33.5			Primarily made by Hitachi for applications including printers and aquariums
f40t9	48	37	~95	~0.420	~45.5			Primarily made by Hitachi

U-bent:

Code	Wattage*	Discharge length (in)	Leg spacing (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
fb16t8	16	~17	1-2	~80	~0.2	1949-1950	Discharge length is dependent on the fact that an f15t8's discharge length is ~15.5 in this lamp would be slightly longer; Lamp length (tip of bend to the endcaps) is between 6 and 12 inches
fb31t8	31		1.625 and 6			~1990?	6 in leg spacing on fb31t8's is very uncommon;
fb32t8	31	~45.5	6	~137	~0.150	~1990, pre-Alto?
fb35t8	35	~45.5	6			Pre 2003
fb40t8	40	~45.5	6	~106	~0.420	1975
fb20t12	20	~17.5	6	~48	~0.330	~1950(?)	Lamp length (tip of bend to the endcaps) is ~10 inches
fb34t12	34	~45.5	6			Pre 2003
fb40t12	40	~45.5	6	~100	~0.430	~1950(?)
fb65t12	65	~57.5	6	~260	~0.250	~1950(?)	Lamp length (tip of bend to the endcaps) is ~28 inches

Circline:

Code	Wattage*	Discharge length (in)	Diameter (in)	Arc voltage (lamp voltage)	Arc current (lamp current, amps)	Year of release	Notes
fc6t9	15
fc8t9	22	(55-65)?	~8.25	~80	~0.2	1949-1950	Discharge length is dependent on the fact that an f15t8's discharge length is ~15.5 in this lamp would be slightly longer; Lamp length (tip of bend to the endcaps) is between 6 and 12 inches
fc10t9/t10	22
fc16t9/t10	40

PL:

PL lamp type	Description	Lamp wattages	Base type
PL-S	PL-S stands for short plug-in lamp (5-13 watts)	5, 7, 9, 11, 13	gx23
PL-L	PL-L stands for long plug-in lamp (18-80 watts)	18, 24, 29 ('energy saving' version of 40 watt pl-l) 36, 40, 55, 80	2g11
PL-T	3 compact fluorescent turns (16-57 watts)	16, 18, 24, 26, 27, 28, 32, 33, 34, 42, 54, 57	gx24-qx
PL-C	PL-C stands for cluster of fluorescent lamps (10-27 watts)	10, 13, 18, 26, 27	g24d-x, g24q-x, gx23
PL-R	PL-R stands for radius model, these plug in lamps unlike the lamps listed above have round bases (14-17 watts)	14,17	gr14q-1
PL-H	PL-H stands for high output lamp (120w)	120	2G8-1
PL-Q	PL-Q stands for quadrant lamp (these are also called 2d lamps and are referred to as 2d lamps here).	10, 14, 16, 21, 24, 28, 31, 38, 55	GR10Q (4 pin), GR8 (2 pin)

I'm glad yall like it! I added more as you can see, I just couldn't fit it all in one post!

@Multisubject Yes please feel free to add it! No need to give me credit this is all information that I've found online. Unfortunately I am unable to find the origin for a lot of this information. Most voltage stuff were from LG and other common lighting sources and some Philips spec sheets possibly. A lot of slimline, HO, VHO, etc. lamps voltages were calculated from their amperage since they're all about the same.

This list is from long ago but I'm happy to see it will be useful!

Please feel free to give me corrections/information (like @Beta 5 did) and I will add them eventually! For some reason the circline parts were not complete so I just added a little bit of information.

OMG OMG thanks so much for sharing these! I have been looking for those larger T5, T6, and T5HO specs for a while, I will add them to my public lamp spec sheet later when I get a chance if that's okay. May I ask if these are measured specs or are they taken from datasheets? If so what datasheets? This is immensely helpful, you are definitely getting credit for this on the front page

you can find pretty most common Linear T5/T8/T12 etc specifications in various IEC, ANSI, & JIS standards, thats where I get all of mine from, pretty sure I did link to a few the last few times subjects like this came up

IEC straight and compact fluorescent

https://www.doc88.com/p-90159314455861.html

https://www.doc88.com/p-11861696039144.html


ANSI straight and compact fluorescent

https://www.nema.org/docs/default-source/about-us-document-library/ansi-c78.81-2016-(r2022)_aspublished.pdf

https://www.doc88.com/p-51499045262529.html

JIS straight and compact fluorescent

https://kikakurui.com/c7/C7617-2-2009-01.html

https://kikakurui.com/c7/C7618-2-2009-01.html

Interesting list, hopefully it can grow as more info is added, it would be quite useful to have something like this as a permanent feature to the site, perhaps also distinguishing which ones are predominantly US and EU market lamps and which ones are common across both.

As for T5 HE I believe they came out earlier than 1999, possibly around 1994 (which may also apply to T5 HO too), and regarding the energy saving variants both Philips and GE had their take on them, the Philips wattages differing slightly to the GE ones which can be seen in this PDF on the T5 Wattmiser range
https://docs.rs-online.com/501c/0900766b80d11960.pdf

that PDF is for the Watt-miser version, GE's HE/HO T5's are the same wattage as everyone else's

I'm glad yall like it! I added more as you can see, I just couldn't fit it all in one post!

@Multisubject Yes please feel free to add it! No need to give me credit this is all information that I've found online. Unfortunately I am unable to find the origin for a lot of this information. Most voltage stuff were from LG and other common lighting sources and some Philips spec sheets possibly. A lot of slimline, HO, VHO, etc. lamps voltages were calculated from their amperage since they're all about the same.

This list is from long ago but I'm happy to see it will be useful!

Please feel free to give me corrections/information (like @Beta 5 did) and I will add them eventually! For some reason the circline parts were not complete so I just added a little bit of information.

@Emersyn while I do appreciate it must of taken a fair bit of effort to put the list together, and I appreciate the willingness to help educate the fellow enthusiast im afraid theres quite number inaccuracies in that list (a fair number of which are rather egregious and baffling as to where that info came from!)

I mention this just because if theres one frustrating thing about this hobby, is people repeating/perpetuating incorrect information that then becomes a PITA later!  perhaps you can improve the information with the standards documentation I have provided above


and in general that if your not sure about some bit of info its best to leave it out then to add it and potentially miss lead someone


it would also be good if you could cite sources and the such like