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List of automotive light bulb types
Bulb Types and Descriptions
Bulb Types and Descriptions
Light bulbs for automobiles are made in several standardized series. Bulbs used for headlamps, turn signals and brake lamps may be required to comply with international and national regulations governing the types of lamps used. Other automotive lighting applications such as auxiliary lamps or interior lighting may not be regulated, but common types are used by many automotive manufacturers.
International
The World Forum for Harmonization of Vehicle Regulations (ECE Regulations) develops and maintains international-consensus UN Regulations on light sources acceptable for use in lamps on vehicles and trailers type-approved for use in countries that recognise the UN Regulations. These include Regulation 37, which contains specifications for filament lamps, and Regulation 99 and its addenda which covers light sources for high-intensity discharge headlamps. Some UN-approved bulb types are also permitted by some other regulations, such as those of the United States or of Japan, though Japan has begun supplanting the former Japanese national regulations with the international UN regulations.
Filament lamps
UN Regulation 37 covers motor vehicle filament lamps. These are categorized in three groups: those without general restriction that can be used in any application, those acceptable only for signalling lights (not for road illumination lamps), and those no longer allowable as light sources for new type approvals but still permitted for production as replacement parts.
{{anchor|Group 1}} Group 1
| Category | Filaments | Nominal power | |||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (major/minor filament | |||||||||||||||||||||||||||||||||||||||||||||
| where applicable) | Cap (base) | ||||||||||||||||||||||||||||||||||||||||||||
| per IEC 60061 | Other approvals | Remarks | Image | H1 | H3 | H4 | H7 | H8 | H8B | H9 | H9B | H10 | H11 | H11B | H12 | H13 | H13A | H15 | H16 | H16B | H21W | H27W/1 | H27W/2 | HB3 | HB3A | HB4 | HB4A | HIR1 | HIR2 | HP24W | HPY24W | HS1 | HS2 | HS5 | HS5A | HS6 | PX24W | PSX24W | PSX26W | S1 | S2 | S3 | |||
| 1 | 6 V & 12 V: 55 W | ||||||||||||||||||||||||||||||||||||||||||||
| 24 V: 70 W | P14.5s | USA, Japan | 12V: ECE nominal luminous flux: 1,550 lm ±15% | [[File:H1-Lampe-12V-55W 20050302 1950 2247.jpg | 100px]] | ||||||||||||||||||||||||||||||||||||||||
| 1 | 6 V & 12 V: 55 W | ||||||||||||||||||||||||||||||||||||||||||||
| 24 V: 70 W | PK22s | USA, Japan | 12V: ECE nominal luminous flux: 1,450 lm ±15% | [[File:Osram H3 12V 55W.jpg | 100px]] | ||||||||||||||||||||||||||||||||||||||||
| 2 | 6 V & 12 V: 60 / 55 W | ||||||||||||||||||||||||||||||||||||||||||||
| 24 V: 75 / 70 W | P43t | Japan | Similar US bulb: HB2 (9003) | ||||||||||||||||||||||||||||||||||||||||||
| [[File:H4 Philips Premium used.JPG | 100px]] | ||||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 55 W | ||||||||||||||||||||||||||||||||||||||||||||
| 24 V: 70 W | PX26d | USA, Japan | 12V: ECE nominal luminous flux: 1,500 lm ±10% | [[File:Philips H7 12V 55W.jpg | 100px]] | ||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 35 W | PGJ19-1 | USA | ECE nominal luminous flux: 800 lm ±15% | [[File:Philips H8 12V 35W.jpg | 100px]] | |||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 35 W | PGJY19-1 | USA | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 65 W | PGJ19-5 | USA | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 65 W | PGJY19-5 | USA | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 42 W | PY20d | USA | ANSI № 9145 | |||||||||||||||||||||||||||||||||||||||||
| ECE nominal luminous flux: 850 lm ±15% | |||||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 55 W | ||||||||||||||||||||||||||||||||||||||||||||
| 24 V: 70 W | PGJ19-2 | USA | ECE nominal luminous flux: 1,350 lm ±10% | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 55 W | ||||||||||||||||||||||||||||||||||||||||||||
| 24 V: 70 W | PGJY19-2 | USA | |||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 53 W | PZ20d | USA | ANSI № 9055 | |||||||||||||||||||||||||||||||||||||||||
| ECE nominal luminous flux: 1,050 lm ±15% | |||||||||||||||||||||||||||||||||||||||||||||
| 2 | 12 V: 60 / 55 W | P26.4t | USA | ANSI № 9008 | |||||||||||||||||||||||||||||||||||||||||
| ECE nominal luminous flux: 1,700 / 1,100 lm ±15% | |||||||||||||||||||||||||||||||||||||||||||||
| 2 | 12 V: 60 / 55 W | PJ26.4t | USA | ||||||||||||||||||||||||||||||||||||||||||
| 2 | 12 V: 55 / 15 W | PGJ23t-1 | USA | ECE nominal luminous flux: 26/1350 ±10% Low-wattage filament for DRL function | [[File:Osram H15 12V-15-55W lamp.jpg | 100px]] | |||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 19 W | PGJ19-3 | |||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 19 W | PGJY19-3 | |||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V & 24 V: 21 W | BAY9s | |||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 27W | PG13 | USA | ANSI № 880 | |||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 27 W | PGJ13 | USA | ANSI № 881 | |||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 60 W | P20d 90° | USA, Japan | ANSI № 9005 | |||||||||||||||||||||||||||||||||||||||||
| ECE nominal luminous flux: 1700 lm ±15% | |||||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 60 W | P20d 180° | USA | ANSI № 9005XS | |||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 51 W | P22d 90° | USA, Japan | ECE nominal luminous flux:1000 ± 15% ANSI № 9006 | [[File:HB4 (9006) bulb 12 V, 51 W.JPG | 150px | HB4 (9006) bulb 12 V, 51 W]] | ||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 51 W | P22d 180° | USA | ANSI № 9006XS | |||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 60 W | PX20d | USA, Japan | ANSI № 9011 | |||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 55 W | PX22d | USA, Japan | ANSI № 9012 | |||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 24 W | Exclusively produced by Valeo | |||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 24 W | Amber, Exclusively produced by Valeo | |||||||||||||||||||||||||||||||||||||||||||
| 2 | 6 V & 12 V: 35 / 35 W | PX43t | For motorcycles | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 6 V & 12 V: 15 W | PX13.5s | For motorcycles | ||||||||||||||||||||||||||||||||||||||||||
| 2 | 12 V: 35 / 30 W | P23t | For motorcycles | ||||||||||||||||||||||||||||||||||||||||||
| 2 | 12 V: 45 / 40 W | PX23t | For motorcycles | ||||||||||||||||||||||||||||||||||||||||||
| 2 | 12 V: 40 / 35 W | PX26.4t | For motorcycles | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 24 W | PGU20-7 | |||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 24 W | PG20-7 | ANSI № 2504 | ||||||||||||||||||||||||||||||||||||||||||
| 1 | 12 V: 26 W | PG18.5d-3 | ANSI № 6851 | ||||||||||||||||||||||||||||||||||||||||||
| 2 | 6 V & 12 V: 45 / 40 W | BA20d | For car headlights | ||||||||||||||||||||||||||||||||||||||||||
| 2 | 6 V & 12 V: 35 / 35 W | BA20d | For motorcycles | [[File:S2 12V 35x35W BA20d Automotive Light Bulb.jpg | 100px | S2 bulb]] | |||||||||||||||||||||||||||||||||||||||
| 2 | 6 V & 12 V: 15 W | P26s | For mopeds |
{{anchor|Group 2}} Group 2
| [[File:W16W lamp broken.JPG | 100px]] |
|---|
|- !WY16W |W2.1×9.5d |1 |12 V: 16 W
| Amber, ANSI № 921NA |
|---|
| !W21W |
| W3×16d |
| 1 |
| 12 V: 21 W |
| T20 size |
| ANSI № 7440 |
| [[File:W21W lamp.jpg |
| - |
| !WY21W |
| WX3×16d |
| 1 |
| 12 V: 21 W |
| Amber |
| ANSI № 7440NA |
| [[File:WY21W lamp.jpg |
| - |
| !WP21W |
| WY2.5×16d |
| 1 |
| 12 V: 21 W |
| | |- !WPY21W |WZ2.5×16d |1 |12 V: 21 W |Amber | |- !W21/5W |W3×16q |2 |12 V: 21 / 5 W |T20 size ANSI № 7443 |[[File:W3x16q.jpg|100px]] |- !WR21/5W |WY3×16q |2 |12 V: 21 / 5 W |Red | |}
{{anchor|Group 3}} Group 3
| Category | Cap (Base) | width="20" | Filaments | Nominal power | Comments | class="unsortable" | Image | C21W | H2 | H14 | P19W | PC16W | PCR16W | PCY16W | PR19W | PY19W | PSR19W | PSR24W | PR24W | R2 | S1 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SV8.5 | 1 | 12 V: 21 W | Old designation: C15, | |||||||||||||||||||||||
| for reversing lamp only | ||||||||||||||||||||||||||
| X511 | 1 | 12 V / 55 W | ECE nominal luminous flux: 1800lm ±15% Deleted from Reg 37 | [[File:H2 automotive lamp.jpg | 100px]] | |||||||||||||||||||||
| 2 | 12 V: 60 / 55 W | P38t | Japan | |||||||||||||||||||||||
| ECE nominal luminous flux: 1,750 / 1,150 lm ±15% | ||||||||||||||||||||||||||
| PGU20-1 | 1 | 12 V: 19 W | ||||||||||||||||||||||||
| PU20d-1 | 1 | 12 V: 16 W | ||||||||||||||||||||||||
| PU20d-7 | 1 | 12 V: 16 W | Red | |||||||||||||||||||||||
| PU20d-2 | 1 | 12 V: 16 W | Amber | |||||||||||||||||||||||
| PGU20-5 | 1 | 12 V: 19 W | Red | |||||||||||||||||||||||
| PGU20-2 | 1 | 12 V: 19 W | Amber | |||||||||||||||||||||||
| PG20-5 | 1 | 12 V: 19 W | Red | |||||||||||||||||||||||
| PG20-6 | 1 | 12 V: 24 W | Red | |||||||||||||||||||||||
| PGU20-6 | 1 | 12 V: 24 W | Red | |||||||||||||||||||||||
| P45t | 2 | 6 V & 12 V: 45 / 40 W | Standard and higher-wattage versions available with halogen burner | |||||||||||||||||||||||
| BA20d | 2 | 6 V & 12 V: 25 / 25 W | for motorcycles |
Gas discharge lamps
UN Regulation 99 covers gas discharge light sources for use in vehicle headlamps. All light sources acceptable under Regulation 99 are also acceptable under US regulations.
| Category | Cap (Base) | Nominal power | Remarks | class="unsortable" | Image | D1R | D1S | D2R | D2S | D3R | D3S | D4R | D4S | D5S | D6S | D7S | D8S | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PK32d-3 | 85 V / 35 W | Integral ignitor | |||||||||||||||||||
| For reflector systems | |||||||||||||||||||||
| PK32d-2 | 85 V / 35 W | Integral ignitor | |||||||||||||||||||
| For projector systems | |||||||||||||||||||||
| P32d-3 | 85 V / 35 W | For reflector systems | |||||||||||||||||||
| P32d-2 | 85 V / 35 W | For projector systems | [[File:Xenonlamp.jpg | 100px]] | |||||||||||||||||
| PK32d-6 | 42 V / 35 W | Mercury-free | |||||||||||||||||||
| Integral ignitor | |||||||||||||||||||||
| For reflector systems | |||||||||||||||||||||
| PK32d-5 | 42 V / 35 W | Mercury-free | |||||||||||||||||||
| Integral ignitor | |||||||||||||||||||||
| For projector systems | |||||||||||||||||||||
| P32d-6 | 42 V / 35 W | Mercury-free | |||||||||||||||||||
| For reflector systems | |||||||||||||||||||||
| P32d-5 | 42 V / 35 W | Mercury-free | |||||||||||||||||||
| For projector systems | |||||||||||||||||||||
| PK32d-[7] | 12 V: 25 W | Ballast output voltage | |||||||||||||||||||
| P32d-1 | 42 V: 25 W | ||||||||||||||||||||
| PK32d-1 | 42 V: 25 W | ||||||||||||||||||||
| PK32d-1 | 42 V: 25 W |
Germany
There is a German national regulation for vehicle bulbs, now superseded by international ECE regulations. Bulbs according to the old German regulation are still manufactured. The German regulation is contained in §22a, Subsection 1, No. 18 of the Straßenverkehrs-Zulassungs-Ordnung (StVZO, Road Traffic Approval Regulation). Per the Fahrzeugteileverordnung (FzTV, Vehicle Parts Regulation), such light bulbs must bear an approval mark consisting of a sine wave and the letter 'K'. The technical requirements themselves are established by standards produced by DIN.
| Category | Nominal power | width="20" | Filaments | Cap (Base) | Comments | class="unsortable" | Image | Form K (DIN 72601, Part 4) | Form K (DIN 72601, Part 4) | Form K (DIN 72601, Part 6) | Form K (DIN 72601, Part 6) | Form K (DIN 72601, Part 6) | Form R (DIN 72601, Part 6) | Form R (DIN 72601, Part 6) | Form R (DIN 72601, Part 6) | Form S (DIN 72601, Part 7) | Form S (DIN 72601, Part 7) | Form S (DIN 72601, Part 7) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 V, 10 W | 1 | SV8.5-8 | 11 × 41 mm | ||||||||||||||||||||
| 12 V, 10 W | 1 | SV8.5-8 | 11 × 41 mm | ||||||||||||||||||||
| 6 V, 18 W | 1 | SV8.5-8 | 15 × 41 mm | ||||||||||||||||||||
| 12 V, 18 W | 1 | SV8.5-8 | 15 × 41 mm | ||||||||||||||||||||
| 24 V, 18 W | 1 | SV8.5-8 | 15 × 41 mm | ||||||||||||||||||||
| 6 V, 18 W | 1 | BA15s | |||||||||||||||||||||
| 12 V, 18 W | 1 | BA15s | |||||||||||||||||||||
| 24 V, 18 W | 1 | BA15s | |||||||||||||||||||||
| 6 V, 18 / 5 W | 2 | BAY15d | |||||||||||||||||||||
| 12 V, 18 / 5 W | 2 | BAY15d | |||||||||||||||||||||
| 24 V, 18 / 5 W | 2 | BAY15d |
United States and Canada
In the United States, entry 49 CFR 564 in the Code of Federal Regulations requires manufacturers of headlight bulbs, officially known as "replaceable light sources", to furnish the National Highway Traffic Safety Administration (NHTSA) with product specifications at least 60 days prior to first use. The specifications supplied by the manufacturer, on approval by NHTSA, are entered in Federal docket NHTSA-1998-3397. From then on, any light source made and certified by any manufacturer as conforming to the specifications is legal for use in headlamps certified as conforming to Federal Motor Vehicle Safety Standard 108. Light sources for vehicle lamps other than headlamps are not Federally regulated.
In Canada, vehicle headlamps may use light sources (bulbs) conforming to either the US or the international ECE regulations.
| Bulb Type | Trade Number | Cap (Base) | width="20" | Filaments | Nominal power @ 12.8v | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (High/Low beam | |||||||||||||
| where applicable) | Comments | class="unsortable" | Image | HB1 | HB2 | HB3 | HB3A | HB4 | HB4A | HB5 | H13 | ||
| 9004 | P29t | 2 | 65 / 45 W | ||||||||||
| 9003 | P43t-38 | 2 | 60 / 55 W | ||||||||||
| H4 with stricter geometric tolerances | |||||||||||||
| 9005 | P20d (90°) | 1 | 65 W | ||||||||||
| 9005XS | P20d (straight) | 1 | 65 W | HB3 w/180° straight base | |||||||||
| 9006 | P22d (90°) | 1 | 55 W | ||||||||||
| 9006XS | P22d (180° straight) | 1 | 55 W | HB4 w/180° straight base | |||||||||
| 9007 | PX29t | 2 | 65 / 55 W | ||||||||||
| 9008 | P26t | 2 | 65 / 55 W |
| Category | Cap (Base) | width="20" | Filaments | Nominal power | Comments | class="unsortable" | Image | PC194 | PC74 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T10 (if removable) | 1 | 14 V / 3.78W | ||||||||||||
| T1-3/4 (if removable) | 1 | 14 V / 1.4W |
Other countries
| Category | Cap (Base) | width="20" | Filaments | Electrical Characteristics | Comments | class="unsortable" | Image | H3C | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
References
References
- [http://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/R037r7e.pdf ECE Regulation No. 37: Uniform Provisions Concerning the Approval of Filament Lamps for Use in Approved Lamp Units on Power-Driven Vehicles and of their Trailers, Revision 7]
- [http://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/r099r2e.pdf ECE Regulation No. 99: Uniform Provisions Concerning the Approval of Light Sources for Use in Approved Gas-Discharge Lamp Units of Power-Driven Vehicles]
- [http://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/R099r2am3e.pdf ECE Regulation 99 Amendment 3]
- [https://lampsap.com/socles/ Types of bulbs and socles]
- [https://unece.org/DAM/trans/main/wp29/wp29resolutions/ECE-TRANS-WP29-1127e.pdf Consolidated Resolution on the common specification of light source categories (R.E.5), 1 March 2018, p. 14]
- "49 CFR 564 - Replaceable Light Source Information". U.S. Government Printing Office.
- [http://www.regulations.gov/#!docketBrowser;dct=N%252BFR%252BPR%252BO%252BPS;rpp=500;so=ASC;sb=docId;po=0;D=NHTSA-1998-3397 NHTSA Docket 1998-3397: Replaceable Light Source Information]
- [http://www.tc.gc.ca/eng/acts-regulations/regulations-crc-c1038-sch-iv-108.htm Canada Motor Vehicle Safety Standard 108] {{webarchive. link. (2013-06-21)
- "PHILIPS PC74 {{!}} Bulb 14 VOLTS $0.89".
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