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Bulbs by Base:

Prefocus Based bulbs
A Prefocus base allows a precise alignment of the bulb to provide an accurate focusing of the light for projectors, automobile headlights, etc. Pre-Focus bases are found with single and double contact points and have a distinctive ring. Axial and Right-angle Prefocus Base used in automotive headlight bulbs are somewhat different. The base of the bulb is a female receptacle that inserts on the headlight connector.

Prefocus Base

Bulb #
 Volt Amp
Watts
 Glass
More
55A/S8 SINGLE CONTACT PREFOCUS BASE - 12 Volt 0.55 Amp S-8 Single Contact Prefocus Base, 5.57 MSCP C-8S Filament Design. 500 Average Rated Hours, 2.09" Maximum Overall Length. 55A/S8 Replaces CM2374X
 55A/S8 12.0 0.55
Single Contact Prefocused
S8
77A/S8 SINGLE CONTACT PREFOCUS BASE - 12 Volt 0.77 Amp S-8 Single Contact Prefocus Base, 9.55 MSCP C-8S Filament Design. 500 Average Rated Hours, 2.09" Maximum Overall Length. 77A/S8 Replaces CM2033X

77A/S8

 12.0 0.77
Single Contact PreFocus
S8
#880 12V/37W T-3 1/4 AUTOMOTIVE HALOGEN AXIAL PREFOCUS PX29T BASE - 12 Volt 37 Watt 2.10 Amp T-3 1/4 Automotive Halogen Axial Prefocus (PX29t) Base 540 MSCP, C-6 Filament Design. 2.68" Overall Length, 300 Average Rated Hours
 #880 12.0 2.10
Axial Prefocus
T3-1/4
#884 12V/27W T-3 1/4 AUTOMOTIVE HALOGEN AXIAL PREFOCUS (P29t) BASE - 12 Volt 27 Watt 2.10 Amp T-3 1/4 Automotive Halogen Axial Prefocus P29t Base 540 MSCP, C-6 Filament Design. 2.68" Overall Length, 300 Average Rated Hours
#884 12.0 2.10
Axial Prefocus
T3-1/4
#890 12.8V/27W T-3 1/4 AUTOMOTIVE HALOGEN AXIAL PREFOCUS P29T BASE - 12.8 Volt 27 Watt 2.1 Amp T-3 1/4 Automotive Halogen Axial Prefocus (P29t) Base 540 MSCP, C-6 Filament Design. 2.68" Overall Length, 300 Average Rated Hours
#890 12.8 2.10
Axial Prefocus
T3-1/4
#893 12.8V/37.5W T-3 1/4 AUTOMOTIVE HALOGEN AXIAL PREFOCUS PX29T BASE - 12.8 Volt 37.5 Watt 2.93 Amp T-3 1/4 Automotive Halogen Axial Prefocus (PX29t) Base 940 MSCP, C-6 Filament Design. 2.68" Overall Length, 200 Average Rated Hours
#893 12.8 2.93
Axial Prefocus
T3-1/4
#894 12.8V/37W T-3 1/4 AUTOMOTIVE HALOGEN RIGHT ANGLE PREFOCUS BASE - 12.8 Volt 37 Watt 2.93 Amp T-3 1/4 Automotive Halogen Right Angle Prefocus Base 940 MSCP, C-6 Filament Design. 2.68" Overall Length, 200 Average Rated Hours
#894 12.8 2.93
Right Angle Prefocus
T3-1/4
#896 12.8V/37.5W T-3 1/4 AUTOMOTIVE HALOGEN RIGHT ANGLE PREFOCUS BASE - 12.8 Volt 37.5 Watt 2.93 Amp T-3 1/4 Automotive Halogen Right Angle Prefocus Base 940 MSCP, C-6 Filament Design. 2.68" Overall Length, 200 Average Rated Hours
#896 12.8 2.93
Right Angle Prefocus
T3-1/4
#898 12.8V/37.5W T-3 1/4 AUTOMOTIVE HALOGEN RIGHT ANGLE PREFOCUS BASE - 12.8 Volt 37.5 Watt 2.93 Amp T-3 1/4 Automotive Halogen Right Angle Prefocus Base 754 MSCP, C-6 Filament Design. 2.68" Overall Length, 1,900 Average Rated Hours
#898 12.8 2.93
Right Angle Prefocus
T3-1/4
#1044 MINIATURE BULB P15D BASE - 12.8/12.8 Volt 2.73/1.83 Amp RP-11 Double Contact (DC) Prefocus (P15d) Base C-6 Filament Design. 240/195 Average Rated Hours, 2.2" Maximum Overall Length
#1044 12.8/12.8 2.73/1.83
P15D
RP-11
#1096 MINIATURE BULB P30D BASE - 6 Volt 4.50 Amp S8 Double Contact Prefocus (P30d) Base, 30 MSCP C-2R Filament Design. 500 Average Rated Hours, 2" Maximum Overall Length
 #1096 6.0 4.50
Single Contact Prefocus
S8
#1323 MINIATURE BULB SINGLE CONTACT PREFOCUS BASE- 6.2 Volt 4.13 Amp 25.61 Watt RP-11, Single Contact Prefocus Base, 32.00 MSCP, C-2V Filament Design, 200 Average Rated Hours, 2.25" Maximum Overall Length
#1323 6.2 4.13
SC Prefocus
RP-11
#1327 MINIATURE BULB SINGLE CONTACT PREFOCUS BASE - 12.8 Volt 2.08 Amp RP-11 Single Contact Prefocus Base, 32.0 MSCP C-2V Filament Design. 300 Average Rated Hours, 1.75" Maximum Overall Length
#1327 12.8 2.08
SC Prefocus
RP-11
#1468 MINIATURE BULB P15D BASE - 6 Volt 4.5 Amp S8 Double Contact Prefocus (P15d) Base, 30 MSCP C-2R Filament Design 375 Lumens. 500 Average Rated Hours, 2.00" Maximum Overall Length
#1468 6.0 4.50
P15D
S8
#1468X MINIATURE BULB P15D BASE - 6V Volt 4.5 Amp S8 Double Contact Prefocus (P15d) Base, 30 MSCP C-2R Filament Design 375 Lumens. 500 Average Rated Hours, 2.00" Maximum Overall Length
 #1468X 6.0 4.50
P15D
S8
#1501 MINIATURE BULB P15S BASE - 5.9 Volt 6.36 Amp 37.5 Watt RP11 Single Contact Prefocus (P15s) Base, 0.0 MSCP C-6 Filament Design. 200 Average Rated Hours, 2.25" Maximum Overall Length
#1501 5.90 6.36
P15S
RP-11
#1561 MINIATURE BULB P15S30 BASE - 6.3 Volt 4 Amp 25.2 Watt S-11 Single Contact Prefocus P15S30 Base, C-8Z Filament Design. 2.38" Maximum Overall Length. 1,500 Average Rated Hours
#1561 6.3 4.0
P15S
S11
#1631X MINIATURE BULB P30d BASE - 6.50 Volt 2.75 Amp 17.875 Watt S8 Double Contact Prefocus (P30d) Base, 23 MSCP C-6 Filament Design. 100 Average Rated Hours, 2" Maximum Overall Length
#1631X
 6.50 2.75
P30D
S8
#4745 MINIATURE BULB P43T BASE - 12.8/12.8V Volt 45/45 Watt T-5 H4 Axial Prefocus (P43T) Base, 70/50 MSCP, C-8/C-8 Filament Design. 120/250 Average Rated Hours, 3.63" Maximum Overall Length
#4745 12.8/12.8 3.52/3.52
P43T
T5
#7951 MINIATURE BULB P45T BASE - 12 Volt 45/40 Watt S13 P45T Base, 48/38 MSCP C-2F Filament Design. 75/150 Average Rated Hours, 3.23" Maximum Overall Length, 1-5/8" Maximum Outer Diameter
 #7951 12.0 3.75/3.33
P45T
S13
#7952 MINIATURE BULB P45T BASE - 24 Volt 55/50 Watt 2.29/2.08 Amp S13 P45T Base, 48/38 MSCP C-6/C-6 Filament Design. 75/150 Average Rated Hours, 3.23" Maximum Overall Length, 1-5/8" Maximum Outer Diameter
#7952 24.0 2.29/2.08
P45T
S13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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