File out the car LED interior light inquiry form
Step1: Visit Osram Sylvania Lamp Replacement Guide to find out the bulb part # you need. (you will be redirect to Sylvania's website)
Step 2: Check the Cross reference
| Common Part Number | Cross Reference Part Number |
| 1157 | BAY15d 1016 1034 1076 1130 1154 1157 1158 1493 2057 2357 2397 7528 P21/4 |
| 1156 | BA15s 1073 1093 1129 1141 1156 1159 1295 1459 1619 1651 1680 7506 7527 P21 |
| 7507 | BAU15s PY21W |
| 7443 | 7444 7443 7441 7440 T20 |
| 7440 | 992 7440 (A refers to Amber) T20 *7443 bulb is interchangeable to all 7440 applications |
| 3157 | 3057 3155 3357 3457 4157 |
| 3156 | 3056 3456 4156 *3157 bulb is interchangeable to all 3156 applications |
| 168 (T10) | 194 147 152 158 159 161 168 175 184 192 193 259 280 285 447 464 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825 W5W PC175 |
| 2825 (T10) | 2821 2823 2827 |
| 921 | 906 579 901 904 908 909 912 914 915 916 917 918 920 921 922 923 926 927 928 939 |
| BA9s | 64132 H6W 1895 53 57 182 257 363 1445 6253 64111 |
| 74 | 17 18 37 70 73 79 85 86 2721 |
| 211-2 (aka D42mm) | 212-1 212-2 214-2 569 578 579 |
| 6418 (aka D36mm) | 3423 3425 6411 6413 6418 6423 6461 DE3423 DE3425 C5W |
| DE3175 (aka D31mm) | DE3175 DE3021 DE3022 3175 3022 3021 |
Car Bulb Diagram (move over the mouse to enlarge)
Step 3: Choose the LED bulb type
| High Power LED bulbs | 1210 Single Chip SMD LED bulbs | 5050 3-Chip SMD LED bulbs | |
| Output Each Emitter (lum) | 60-90 lum | 30-45 lum | 80-100 lum |
| Lighting Angle | 180 degree | 360 degree | 360 degree |
| Coverage | Very Good | Excellent | The Best |
| Lighting Quality | Even Lighting | Wide Angle Flood Lighting | Wide Angle Flood Lighting |
| Value vs. Price | Better Value | Excellent Value | The Best Value |
| Sample Picture |  |
 |
 |
Step 4: Which color should I choose?
Here are some recommendation:
| Front Turn Signal Lights | Amber Yellow or Xenon White |
| Rear Turn Signal Lights | Brilliant Red or Amber Yellow |
| Parking Lights | Xenon White |
| Side marker Lights | Xenon White |
| License Plate Lights | Xenon White (this is the only legal color for license plate lights) |
| Backup Lights | Xenon White or Ultra Blue |
| Interior Lights | Choose any color and express your personality! |
Step 5: Search the store and shop, enjoy!
