Automotive LED Bulbs Series
Factory-direct automotive LED bulbs for brake, tail, turn signal, reverse and interior lighting. CANbus and non-CANbus options, 9-32V. OEM/ODM welcome.
Automotive LED Bulbs: Complete Guide to Bases, Types & Replacements
MIDCARS manufactures the full range of automotive LED bulbs in-house — brake, tail, turn signal, reverse, interior, and marker lighting across every common base type. This guide helps buyers and distributors identify the right base family and choose the correct replacement, whether standard, CANbus error-free, or dual-color switchback.
Base Families at a Glance
| Base family | Socket type | Common use |
|---|---|---|
| 1156 / 1157 | BA15s / BAY15d bayonet | Turn signal, brake + tail, reverse |
| T20 (7440 / 7443) | W3x16d wedge | Turn signal, brake + tail, DRL |
| 3156 / 3157 | W2.5x16d wedge | Turn signal, brake + tail, reverse |
| T10 (194 / W5W) | Mini wedge | Interior, marker, license plate |
| Festoon | End-cap | Interior dome, license, cabin |
| G18 | BA15s / BAU15s | Side marker, license, position |
Each family has a distinct socket — they are not interchangeable. The fastest way to identify your base is to read the marking on the old bulb or check the vehicle owner's manual.
How to Choose the Right Automotive LED Bulb
- Identify the base. Match the old bulb's base family — bayonet, wedge, or festoon.
- Single or dual function. One function = single-contact (1156, 7440, 3156); two functions = dual-contact (1157, 7443, 3157).
- Voltage. 12V for cars and motorcycles, 24V for trucks and commercial vehicles.
- CANbus or non-CANbus. CANbus versions stop hyper-flash and dashboard warnings on vehicles with lamp-out detection.
- Standard or switchback. Dual-color switchback gives white running light plus amber turn signal in one bulb.
Explore by Category
- 1156 / 1157 — bayonet turn, brake, and tail bulbs.
- T20 (7440 / 7443) — wedge turn, brake, and tail bulbs.
- 3156 / 3157 — North American wedge bulbs.
- T10 (194 / W5W) — interior and marker bulbs.
- Festoon — interior dome and license bulbs.
- G18 — miniature globe marker and position bulbs.
- LED fog lights — H3 replacements.
- Light accessories — strobe and hazard controllers.
Why Source Automotive LED Bulbs from MIDCARS
- Factory-direct manufacturing in Dongguan, China — no middlemen, competitive wholesale pricing, full quality control.
- Certified compliance — CE-LVD, CE-EMC, and RoHS certificates with full test reports.
- Full base coverage — every common automotive socket in standard, CANbus, and switchback versions.
- Flexible ordering — standard stock from 5 pairs; custom packaging at a 5,000-piece MOQ drawn down across repeat orders.
LED vs Halogen: Why Upgrade?
LED bulbs light up instantly — critical for brake lights, where faster response gives following drivers more reaction time. They run cooler, last far longer, draw less power, and resist the vibration and constant cycling that kills halogen filaments in signal and brake duty.
How do I identify my bulb base?
Read the marking printed on the old bulb (for example 1157, 7443, 3157, or W5W), or check the vehicle owner's manual. If the marking is worn, send us a photo of the old bulb and socket and we will identify the correct replacement.
What is the difference between single and dual filament?
A single-filament bulb drives one function (turn signal or reverse), while a dual-filament bulb drives two functions (brake + tail, or turn + running). The socket contact count tells you which you need — one contact is single, two is dual.
Do I need CANbus bulbs?
If your vehicle shows a dashboard bulb-out warning or the LED hyper-flashes, choose a CANbus (error-free) version. Vehicles without lamp-out detection can use non-CANbus bulbs.
What is your minimum order quantity?
Standard stock starts from 5 pairs for testing and sampling. For custom packaging, the packaging run has a 5,000-piece MOQ, pre-funded and drawn down across your repeat orders. Contact sales02@zhishanled.com for a quotation.
