List of automotive light bulb types

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Group 1 (Without general restrictions)
Category Filaments Nominal power
(major/minor filament
where applicable)
Cap (base)
per IEC 60061
Other approvals Remarks Image
H1 1 6 V & 12 V: 55 W
24 V: 70 W
P14.5s USA, Japan 12V: ECE approved Luminous flux: 1,550 lm ±15% H1-Lampe-12V-55W 20050302 1950 2247.jpg
H3 1 6 V & 12 V: 55 W
24 V: 70 W
PK22s USA, Japan 12V: ECE approved Luminous flux: 1,450 lm ±15% Osram H3 12V 55W.jpg
H4 2 6 V & 12 V: 60 / 55 W
24 V: 75 / 70 W
P43t Japan Similar US bulb: HB2 (9003)

12V: ECE approved Luminous flux: 1,650 / 1,000 lm ±15%

H4 Philips Premium used.JPG
H7 1 12 V: 55 W
24 V: 70 W
PX26d USA, Japan 12V: ECE approved Luminous flux: 1,500 lm ±10% Philips H7 12V 55W.jpg
H8 1 12 V: 35 W PGJ19-1 USA 12V: ECE approved Luminous flux: 800 lm ±15% Philips H8 12V 35W.jpg
H8B 1 12 V: 35 W PGJY19-1 USA    
H9 1 12 V: 65 W PGJ19-5 USA    
H9B 1 12 V: 65 W PGJY19-5 USA    
H10 1 12 V: 42 W PY20d USA US trade # 9145

12V: ECE approved Luminous flux: 850 lm ±15%

 
H11 1 12 V: 55 W
24 V: 70 W
PGJ19-2 USA 12V: ECE approved Luminous flux: 1,350 lm ±10%  
H11B 1 12 V: 55 W
24 V: 70 W
PGJY19-2 USA    
H12 1 12 V: 53 W PZ20d USA US trade # 9055

12V: ECE approved Luminous flux: 1,050 lm ±15%

 
H13 2 12 V: 60 / 55 W P26.4t USA US trade # 9008

12V: ECE approved Luminous flux: 1,700 / 1,100 lm ±15%

 
H13A 2 12 V: 60 / 55 W PJ26.4t USA    
H14 2 12 V: 60 / 55 W P38t Japan 12V: ECE approved Luminous flux: 1,750 / 1,150 lm ±15%  
H15 2 12 V: 55 / 15 W

24 V: 60 / 20 W

PGJ23t-1 USA, Europe 15 / 20 W filament for DRL function Osram H15 12V-15-55W lamp.jpg
H16 1 12 V: 19 W PGJ19-3   similar to PS19W  
H16B 1 12 V: 19 W PGJY19-3      
H21W 1 12 V & 24 V: 21 W BAY9s      
H27W/1 1 12 V: 27W PG13 USA US trade # 880  
H27W/2 1 12 V: 27 W PGJ13 USA US trade # 881  
HB3 1 12 V: 60 W P20d 90° USA, Japan US trade # 9005  
HB3A 1 12 V: 60 W P20d 180° USA US trade # 9005XS  
HB4 1 12 V: 51 W P22d 90° USA, Japan US trade # 9006 HB4 (9006) bulb 12 V, 51 W
HB4A 1 12 V: 51 W P22d 180° USA US trade # 9006XS  
HIR1 1 12 V: 60 W PX20d USA, Japan US trade # 9011  
HIR2 1 12 V: 55 W PX22d USA, Japan US trade # 9012  
HP24W 1 12 V: 24 W     Exclusively produced by Valeo for PSA Group  
HPY24W 1 12 V: 24 W     Amber, Exclusively produced by Valeo for Land Rover?,  
HS1 2 6 V & 12 V: 35 / 35 W PX43t   For motorcycles  
HS2 1 6 V & 12 V: 15 W PX13.5s   For motorcycles  
HS5 2 12 V: 35 / 30 W P23t   For motorcycles  
HS5A 2 12 V: 45 / 40 W PX23t   For motorcycles  
HS6 2 12 V: 40 / 35 W PX26.4t   For motorcycles  
PX24W 1 12 V: 24 W PGU20-7      
PSX24W 1 12 V: 24 W PG20-7   similar to H16/PS19W, but has more power  
PSX26W 1 12 V: 26 W PG18.5d-3      
S2 2 6 V & 12 V: 35 / 35 W BA20d   For motorcycles Automotive Light Bulb, Model: S2, Voltage: 12 V, Wattage: 35 W / 35 W, Socket: BA20d
S3 2 6 V & 12 V: 15 W P26s   For mopeds  
Group 2 (Only for use in signalling lamps, cornering lamps, reversing lamps and rear registration plate lamps)
Category Cap (Base) Filaments Nominal Power
(Major/Minor
where applicable)
Comments Image
C5W SV8.5 1 6 V, 12 V, 24 V: 5 W Old designation: C11, common name is "festoon" base C5W lamp.JPG
H6W BAX9s 1 12 V: 6 W   H6W Halogen Lampe.jpg
HY6W BAZ9s 1 12 V: 6 W Amber  
H10W/1 BAU9s 1 12 V: 10 W    
HY10W BAUZ9s 1 12 V: 10 W Amber  
H21W BAY9s 1 12 V & 24 V: 21 W    
HY21W BAW9s 1 12 V & 24 V: 21 W Amber  
P13W PG18.5d-1 1 12 V: 13 W    
PW13W WP3.3×14.5-7 1 12 V: 13 W    
PC16W PU20d-1 1 12 V: 16 W    
PCR16W PU20d-7 1 12 V: 16 W Red  
PW16W WP3.3×14.5-8 1 12 V: 16 W    
PWR16W WP3.3×14.5-10 1 12 V: 16 W Red  
PWY16W WP3.3×14.5-9 1 12 V: 16 W Amber  
PS19W PG20-1 1 12 V: 19 W    
PSY19W PG20-2 1 12 V: 19 W Amber  
PW19W WP3.3×14.5-1 1 12 V: 19 W    
PWR19W WP3.3×14.5-5 1 12 V: 19 W Red  
PWY19W WP3.3×14.5-2 1 12 V: 19 W Amber  
P21W BA15s 1 6 V, 12 V, 24 V: 21 W Old designation: P25-1
Also used for DRL function
P21W.jpg
PR21W BAW15s 1 12 V & 24 V: 21 W Red  
PY21W BAU15s 1 12 V & 24 V: 21 W Amber  
P21/4W BAZ15d 2 12 V & 24 V: 21 / 4 W Also used for DRL function along with integrated parking lamp beam  
PR21/4W BAU15d 2 12 V & 24 V: 21 / 4 W Red  
P21/5W BAY15d 2 6 V, 12 V, 24 V: 21 / 5 W Old designation: P25-2
Also used for DRL function along with integrated parking lamp beam
Osram 12V 21W 5W.jpg
PR21/5W BAW15d 2 12 V & 24 V: 21 / 5 W Red  
P24W PGU20-3 1 12 V: 24 W    
PY24W PGU20-4 1 12 V: 24 W Amber  
PH24WY   1 12 V: 24 W Amber Philips PH24WY.jpg
PS24W PG20-3 1 12 V: 24 W    
PSX24W PG20-4? 1 12 V: 24 W Similar to PS24W, but with white base  
PSY24W PG20-4 1 12 V: 24 W Amber Philips PSY24WSVplus lamp.jpg
PW24W WP3.3×14.5-3 1 12 V: 24 W    
PWR24W WP3.3×14.5-6 1 12 V: 24 W Red  
PWY24W WP3.3×14.5-4 1 12 V: 24 W Amber  
P27W W2.5×16d 1 12 V: 27 W US trade # 3156  
P27/7W W2.5×16q 2 12 V: 27 / 7 W US trade # 3157 P27 7W lamp.JPG
PR27/7W WU2.5x16 2 12 V: 27 / 7 W Red  
PY27/7W WX2.5x16q 2 12 V: 27 / 7 W Amber
US trade # 3757A
PY27 7W lamp used.JPG
R5W BA15s 1 6 V, 12 V, 24 V: 5 W Old designation: R19/5 R5W lamp.JPG
RR5W BAW15s 1 12 V & 24 V: 5 W Red  
R10W BA15s 1 6 V, 12 V, 24 V: 10 W Old designation: R19/10 R10W lamp.JPG
RR10W BAW15s 1 12 V & 24 V: 10 W Red  
RY10W BAU15s 1 6 V, 12 V, 24 V: 10 W Amber  
T1.4W P11.5d 1 12 V: 1.4W    
T4W BA9s 1 6 V, 12 V, 24 V: 4W Old designation: T8/4 T4W lamp.JPG
T5

or 286

    12 V: 1.4W Same as a T5? Usually in a dashboard twist holder  
W2.3W

(W2,3W)

W2×4.6d

(W2x4,6d)

1 12 V: 1.2W, 2.3 W T5 size.

Could be:

- Osram 2723,

- Narva 17073,

- Philips 12516, etc

 
WY2.3W W2×4.6d 1 12 V: 2.3 W Amber  
W3W W2.1×9.5d 1 6 V, 12 V, 24 V: 3 W T10 size

Old designation: W10/3

 
W5W W2.1×9.5d 1 6 V, 12 V, 24 V: 5 W T10 size

Old designation: W10/5 US trade # 168

Philips 12V 5W.jpg
WR5W W2.1×9.5d 1 12 V & 24 V: 5 W Red  
WY5W W2.1×9.5d 1 6 V, 12 V, 24 V: 5 W Amber  
W10W W2.1×9.5d 1 6 V & 12 V: 10 W T13 size  
WY10W W2.1×9.5d 1 6 V & 12 V: 10 W    
W15/5W WZ3×16q 2 12 V: 15 / 5 W for motorcycles  
W16W W2.1×9.5d 1 12 V: 16 W T15 size

US trade # 921

W16W lamp broken.JPG
WY16W W2.1×9.5d 1 12 V: 16 W Amber, US trade # 921NA
W21W W3×16d 1 12 V: 21 W T20 size

US trade # 7440
Also used for DRL function

W21W lamp.jpg
WY21W WX3×16d 1 12 V: 21 W Amber
US designation: 7440NA
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

US designation: 7443
Also used for DRL function along with integrated parking lamp beam

W3x16q.jpg
WR21/5W WY3×16q 2 12 V: 21 / 5 W Red  
Group 3 (For replacement purposes only)
Category Cap (Base) Filaments Nominal power Comments Image
C21W SV8.5 1 12 V: 21 W Old designation: C15,
for reversing lamp only
 
H2 X511 1 12 V / 55 W Deleted from Reg 37 H2 automotive lamp.jpg
P19W PGU20-1 1 12 V: 19 W    
PC16W PU20d-1 1 12 V: 16 W    
PCR16W PU20d-7 1 12 V: 16 W Red  
PCY16W PU20d-2 1 12 V: 16 W Amber  
PR19W PGU20-5 1 12 V: 19 W Red  
PY19W PGU20-2 1 12 V: 19 W Amber  
PSR19W PG20-5 1 12 V: 19 W Red  
PSR24W PG20-6 1 12 V: 24 W Red  
PR24W PGU20-6 1 12 V: 24 W Red  
R2 P45t 2 6 V & 12 V: 45 / 40 W

24 V: 55 / 50 W

Bilux  
S1 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 Image
D1R PK32d-3 85 V / 35 W Integral ignitor
For reflector systems
 
D1S PK32d-2 85 V / 35 W Integral ignitor
For projector systems
 
D2R P32d-3 85 V / 35 W For reflector systems  
D2S P32d-2 85 V / 35 W For projector systems Xenonlamp.jpg
D3R PK32d-6 42 V / 35 W Mercury-free
Integral ignitor
For reflector systems
 
D3S PK32d-5 42 V / 35 W Mercury-free
Integral ignitor
For projector systems
 
D4R P32d-6 42 V / 35 W Mercury-free
For reflector systems
 
D4S P32d-5 42 V / 35 W Mercury-free
For projector systems
 
D5S PK32d-[7] 12 V: 25 W Ballast output voltage
D6S P32d-1 42 V: 25 W  
D7S PK32d-1 42 V: 25 W  
D8S 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.

German vehicle bulbs per DIN
Category Nominal power Filaments Cap (Base) Comments Image
Form K (DIN 72601, Part 4) 6 V, 10 W 1 SV8.5-8 11 × 41 mm  
Form K (DIN 72601, Part 4) 12 V, 10 W 1 SV8.5-8 11 × 41 mm  
Form K (DIN 72601, Part 6) 6 V, 18 W 1 SV8.5-8 15 × 41 mm  
Form K (DIN 72601, Part 6) 12 V, 18 W 1 SV8.5-8 15 × 41 mm  
Form K (DIN 72601, Part 6) 24 V, 18 W 1 SV8.5-8 15 × 41 mm  
Form R (DIN 72601, Part 6) 6 V, 18 W 1 BA15s    
Form R (DIN 72601, Part 6) 12 V, 18 W 1 BA15s    
Form R (DIN 72601, Part 6) 24 V, 18 W 1 BA15s    
Form S (DIN 72601, Part 7) 6 V, 18 / 5 W 2 BAY15d    
Form S (DIN 72601, Part 7) 12 V, 18 / 5 W 2 BAY15d    
Form S (DIN 72601, Part 7) 24 V, 18 / 5 W 2 BAY15d    

United States and Canada

 

Replaceable Light Sources for Vehicle Headlamps
Bulb Type Trade Number Cap (Base) Filaments Nominal power @ 12.8v
(High/Low beam
where applicable)
Comments Image
HB1 9004 P29t 2 65 / 45 W    
HB2 9003 P43t-38 2 60 / 55 W
European H4 w/stricter geometric tolerances
& lower max output limit
 
HB3 9005 P20d (90°) 1 65 W    
HB3A 9005XS P20d (straight) 1 65 W HB3 w/180° straight base  
HB4 9006 P22d (90°) 1 55 W    
HB4A 9006XS P22d (180° straight) 1 55 W HB4 w/180° straight base  
HB5 9007 PX29t 2 65 / 55 W    
H13 9008 P26t 2 65 / 55 W    

 

Others
Category Cap (Base) Filaments Nominal power Comments Image
PC194 T10 (if removable)

or fixed to holder

1 14 V / 3.78W Used on circuit boards
for e.g. dash lights, gauge

cluster backlights.

Similar in size to W3W if

with a T10 base.

PC194 lamp.JPG
PC74 T1-3/4 (if removable)

or fixed to holder[7]

1 14 V / 1.4W Used on circuit boards
for e.g. dash lights, gauge

cluster backlights.

 

Other countries

Others
Category Cap (Base) Filaments Electrical Characteristics Comments Image
H3C 1 6 V / 55W,
12 V / 55W,
24 V / 70W
Japan
(USA for unregulated auxiliary lamps only)
  H3c.jpg