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Bulb Information & Terminology

SB HF HP SMT M-SMT
Full Name Super Bright High Flux High Power Surface Mount Technology Mini - Surface Mount Technology
Output Good Good Very Good Excellent Excellent
Coverage Ok Very Good Excellent Superb Absolute Best
Viewing Angle Narrow Wide Very Wide Very Wide Very Wide
Effect Concentrated Concentrated Even Output Smooth Output Sparkling Output
Pricing Best Value Great Value Better Value Good Value Best Money Can Buy
Best For Small Housings and Narrow Spot Effect Larger Housings and Focused Dome Applications Older Vehicles w/ Refractor Style Lenses Larger Housings with Euro Clear lenses and Diamond Back Reflectors Larger Housings with Euro Clear lenses and Diamond Back Reflectors


Which color of LED should I use?

For the most vivid color and best results the LED color should be the same as the lens color. If a white LED is used behind a red lens some of the useable light is filtered out. If a white LED is used behind an amber lens the color will be bright yellow.


Common Part # and Cross Reference #'s

Common Part # Cross Reference #'s
1157 1016 1034 1076 1130 1154 1158 1493 2057 2357 2397 7528
1156 1073 1093 1129 1141 1159 1295 1459 1619 1651 1680 7506 7527
7443 7443 7440
7440 992A *7443 bulbs will work in all 7440 applications
194 147 152 158 159 161 168 184 192 193 259 280 285 447 464 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825
3157 3057 3155 3357 3457 4157

**Use Special 3157-SRCK bulbs to replace the tail lights on 04-07 Dodge Ram trucks, center tail tamp bulbs on 88-99 (Old Body Style) Chevy, GMC full size trucks & SUVs (Use the Regular 3157 bulb for the top tail lamp bulbs), 95-01 Cavalier and Sunfire,& 92-98 Grand Am tail lamp bulbs

Use 3157-SACK bulbs for front turn signals on the Toyota Tundra.

If you install regular LED bulbs and keep blowing fuses you probably need these bulbs.
3156 3456 4156 *3157 bulbs will work in all 3156 applications.
57 1895 53 57 182 257 363 1445 6253
74 17 18 37 70 73 79 85 86 2721
921 906 579 901 904 908 909 912 914 915 916 917 918 920 921 922 923 926 927 928 939
211 212 212-2 214-2 6413 6429
6418 3423 3425 6411 6423 6461
3175 3021 3022 6428 6430