Automotive Lamp Types
Europe
Filament lamps
United Nations Economic Commission for Europe (UNECE) has standardized the following three groups of filament bulb categories to be used in vehicles and trailers sold in Europe.
Group 1 (Without general restrictions)
Category
Number of filaments
Rated Electrical Characteristics
Comments
Image
H1
1
6V/55W,
12V/55W,
24V/70W
H3
1
6V/55W,
12V/55W,
24V/70W
H4
2
12V/60W(driving-beam)/55W(passing-beam),
24V/75W(driving-beam)/70W(passing-beam)
US variant: “9003/HB2”
H7
1
12V/55W,
24V/70W
H8
1
12V/35W
right-angle cap
H8B
1
12V/35W
H9
1
12V/65W
right-angle cap
H9B
1
12V/65W
H10
1
12V/42W
right-angle cap
H11
1
12V/55W,
24V/70W
right-angle cap
H11B
1
12V/55W,
24V/70W
H12
1
12V/53W
right-angle cap
H13
2
12V/60W(driving-beam)/55W(passing-beam)
H13A
2
12V/60W(driving-beam)/55W(passing-beam)
right-angle cap
H14
2
12V/60W(driving-beam)/55W(passing-beam)
H15
2
12V/55W(driving-beam)/15W(Daytime running lamp)
right-angle connectors
H21W
1
12V/21W,
24V/21W
H27W/1
1
12V/27W
H27W/2
1
12V/27W
right-angle cap
HB3
1
12V/60W
right-angle cap
HB3A
1
12V/60W
HB4
1
12V/51W
right-angle cap
HB4A
1
12V/51W
HIR1
1
12V/65W
right-angle cap
HIR2
1
12V/55W
right-angle cap
HS1
2
6V/35W(driving-beam)/35W(passing-beam),
12V/35W(driving-beam)/35W(passing-beam)
HS2
1
6V/15W,
12V/15W
HS5
2
12V/35W(driving-beam)/30W(passing-beam)
for motorcycles
HS6
2
12V/40W(driving-beam)/35W(passing-beam)
PX24W
1
12V/24W
PSX24W
1
12V/24W
S2
2
6V/35W(driving-beam)/35W(passing-beam),
12V/35W(driving-beam)/35W(passing-beam)
for motorcycles
S3
2
6V/15W,
12V/15W
for mopeds
Group 2 (Only for use in signalling lamps, cornering lamps, reversing lamps and rear registration plate lamps)
Category
Cap (Base)
Number of filaments
Rated Electrical Characteristics
Comments
Image
C5W
SV8.5
1
6V/5W,
12V/5W,
24V/5W
Old designation: C11
H6W
BAX9s
1
12V/6W
HY6W
BAZ9s
1
12V/6W
Amber
HY21W
BAW9s
1
12V/21W,
24V/21W
Amber
P13W
PG18.5d-1
1
12V/13W
P19W
PGU20-1
1
12V/19W
PR19W
PGU20-5
1
12V/19W
Red
PY19W
PGU20-2
1
12V/19W
Amber
PS19W
PG20-1
1
12V/19W
PSR19W
PG20-5
1
12V/19W
Red
PSY19W
PG20-2
1
12V/19W
Amber
P21W
BA15s
1
6V/21W,
12V/21W,
24V/21W
Old designation: P25-1
PR21W
BAW15s
1
12V/21W,
24V/21W
Red
PY21W
BAU15s
1
12V/21W,
24V/21W
Amber
P21/4W
BAZ15d
2
12V/21W(major filament)/4W(minor filament),
24V/21W(major filament)/4W(minor filament)
PR21/4W
BAU15d
2
12V/21W(major filament)/4W(minor filament),
24V/21W(major filament)/4W(minor filament)
Red
P21/5W
BAY15d
2
6V/21W(major filament)/5W(minor filament),
12V/21W(major filament)/5W(minor filament),
24V/21W(major filament)/5W(minor filament)
Old designation: P25-2
PR21/5W
BAW15d
2
12V/21W(major filament)/5W(minor filament),
24V/21W(major filament)/5W(minor filament)
Red
P24W
PGU20-3
1
12V/24W
PR24W
PGU20-6
1
12V/24W
Red
PY24W
PGU20-4
1
12V/24W
Amber
PS24W
PG20-3
1
12V/24W
PSR24W
PG20-6
1
12V/24W
Red
PSY24W
PG20-4
1
12V/24W
Amber
P27W
W2.5x16d
1
12V/27W
P27/7W
W2.5x16q
2
12V/27W(major filament)/7W(minor filament)
US variant: “3157”
PR27/7W
WU2.5×16
2
12V/27W(major filament)/7W(minor filament)
Red
PY27/7W
WX2.5x16q
2
12V/27W(major filament)/7W(minor filament)
Amber
US variant: “3757A”
R5W
BA15s
1
6V/5W,
12V/5W,
24V/5W
Old designation: R19/5
RR5W
BAW15s
1
12V/5W,
24V/5W
Red
R10W
BA15s
1
6V/10W,
12V/10W,
24V/10W
Old designation: R19/10
RR10W
BAW15s
1
12V/10W,
24V/10W
Red
RY10W
BAU15s
1
6V/10W,
12V/10W,
24V/10W
Amber
T1.4W
P11.5d
1
12V/1.4W
T4W
BA9s
1
6V/4W,
12V/4W,
24V/4W
Old designation: T8/4
W2.3W
W2x4.6d
1
12V/2.3W
WY2.3W
W2x4.6d
1
12V/2.3W
Amber
W3W
W2.1×9.5d
1
6V/3W,
12V/3W,
24V/3W
Old designation: W10/3
W5W
W2.1×9.5d
1
6V/5W,
12V/5W,
24V/5W
Sometimes called as “T10”
Old designation: W10/5
WR5W
W2.1×9.5d
1
12V/5W,
24V/5W
Red
WY5W
W2.1×9.5d
1
6V/5W,
12V/5W,
24V/5W
Amber
W15/5W
WZ3x16q
2
12V/15W(major filament)/5W(minor filament)
for motorcycles
W16W
W2.1×9.5d
1
12V/16W
US variant: “921”
W21W
W3x16d
1
12V/21W
WY21W
WX3x16d
1
12V/21W
Amber
WP21W
WY2.5x16d
1
12V/21W
WPY21W
WZ2.5x16d
1
12V/21W
Amber
W21/5W
W3x16q
2
12V/21W(major filament)/5W(minor filament)
WR21/5W
WY3x16q
2
12V/21W(major filament)/5W(minor filament)
Red
Group 3 (For replacement purposes only)
Category
Cap (Base)
Number of filaments
Rated Electrical Characteristics
Comments
Image
C21W
SV8.5
1
12V/21W
Old designation: C15,
for reversing lamp only
R2
P45t-41
2
6V/45W(driving-beam)/40W(passing-beam),
12V/45W(driving-beam)/40W(passing-beam),
24V/55W(driving-beam)/50W(passing-beam)
S1
BA20d
2
6V/25W(driving-beam)/25W(passing-beam),
12V/25W(driving-beam)/25W(passing-beam)
for motorcycles
f the lamp is available in different voltage variants they are comma-separated.
High-intensity discharge lamps
UNECE has also standardized high-intensity discharge (HID) (“xenon”) lamps.
Category
Cap (Base)
Objective Electrical Characteristics
Comments
Image
D1R
PK32d-3
85V/35W
D1S
PK32d-2
85V/35W
D2R
P32d-3
85V/35W
D2S
P32d-2
85V/35W
D3R
PK32d-6
42V/35W
D3S
PK32d-5
42V/35W
D4R
P32d-6
42V/35W
D4S
P32d-5
42V/35W
The wattage rate of all standardized HID ballasts is 12V/35W.
Old types
This section lists lamp types that are obsolete, but might still be found from some old vehicles.
Category
Number of filaments
Rated Electrical Characteristics
Comments
Image
H2
1
12V/55W
USA
The USA does not recognise ECE Regulations. Bulb types allowed for use in headlamps in the USA are individually approved by NHTSA after a manufacturer submits all critical data on the bulb required by the provisions of 49CFR564. The allowable types of bulbs (officially known as “replaceable light sources”) are filed in a NHTSA Docket.
Headlights
Category
Cap (Base)
Number of filaments
Nominal watts @ 12.8v
Comments
Image
9003 (HB2)
P43t-38
2
60/55w(high/low beam)
European H4 w/strict geometric tolerance
9004 (HB1)
P29t
2
65/45W(high/low beam)
9005 (HB3)
P20d (90)
1
65W
9005XS (HB3A)
P20d (straight)
1
65W
Same as HB3
exc. 180 straight base
9006 (HB4)
P22d (90)
1
55W
9006XS (HB4A)
P22d (straight)
1
55W
Same as HB4
exc. 180 straight base
9007 (HB5)
PX29t
2
65/55W (high/low beam)
H13 (unofficially “9008”)
P26t
2
65/55W (high/low beam)
Others
Category
Cap (Base)
Number of filaments
Electrical Characteristics
Comments
Image
PC194
?
1
14V?/3.78W, ?
Used directly on circuit boards to illuminate e.g. consoles.
Please help improve this article by expanding it. Further information might be found on the talk page. (December 2009)
Other countries
The examples and perspective in this article may not represent a worldwide view of the subject. Please improve this article and discuss the issue on the talk page. (December 2009)
See also
Automotive lighting
Headlamp
References
^ UNIFORM PROVISIONS CONCERNING THE APPROVAL OF FILAMENT LAMPS FOR USE IN APPROVED LAMP UNITS ON POWER-DRIVEN VEHICLES AND OF THEIR TRAILERS, Regulation No. 37, United Nations Economic Commission for Europe
^ H4, HB2, and 9003 bulbs
^ UNIFORM PROVISIONS CONCERNING THE APPROVAL OF GAS-DISCHARGE LIGHT SOURCES FOR USE IN APPROVED GAS-DISCHARGE LAMP UNITS OF POWER-DRIVEN VEHICLES, Regulation No. 99, United Nations Economic Comission for Europe
^ http://www.donsbulbs.com/cgi-bin/r/b.pl/h2~donsbulbs.html H2 at Don’s Bulbs
^ 49CFR564
^ a b List of approved replaceable light sources for U.S. headlamps
^ http://www.donsbulbs.com/cgi-bin/r/b.pl/pc194.html PC194 at donsbulbs.com
Categories: Auto parts | Lamps | Light socketsHidden categories: Articles to be expanded from December 2009 | All articles to be expanded | Articles with limited geographic scope
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