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Super Bright LEDs warehouses are centrally located in the U.S. If your order is placed Monday through Friday before 3 p.m CST, we will ship it that day. If you find that you need to return or exchange a product, we offer hassle-free 30 day returns and exchanges inside and outside of the U.S.
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Increase road safety for yourself and others with LED turn signal bulbs for the front of your 2018 BMW M550i xDrive. These plug-and-play LED bulbs illuminate faster and are brighter than their incandescent counterparts, so your signals can be seen sooner and from greater distances.
- LED Emitting Color Should Match Lens Color
- Your vehicle may require an LED compatible Flasher or Load Resistor. LED brake/tail lamps will not flash with most stock flasher units due to their extremely low current draw. Try our Vehicle LED Bulb Finder to find a compatible flasher for your vehicle.
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Color
LED Emitting Color Should Match Lens Color
For best results, the LED color should be the same as the lens color. If the bulb is behind a clear lens, use the appropriate color for turn and brake light functions.
When installed in a housing that has a matching colored lens, red and amber bulbs will appear brighter than white LED bulbs—even though they have lower lumen outputs.
As an example: a red lens will filter out all but the red portion of light from a bulb, so if the light being emitted from the bulb is all red, none or very little light will be blocked by the lens. The light from a white LED bulb contains very little light in the red portion of the visible spectrum, so most of the light that contributes to its higher lumen value would be filtered out by a red lens. This makes the white bulb appear dimmer than the red bulb.

Brightness
CAN Bus
CAN Bus
Polarity Sensitive
Bulb Polarity
Bulbs have Plus and Minus (like batteries) and will only work when polarity is correct. If bulb does not work when installed, turn it around in the socket.
Polarity Sensitive (NO)
Bulbs do not have Plus and Minus and will work either way installed in the socket.

Image | Part NO | Lumen(Max) | Beam Angle Beam Angle Beam angle is used to express the width of the light emitting from the source. The narrower the beam angle the more focused the light energy is. Comparing two 40 watt lights one with a beam angle of 30(a) and another with a beam angle of 90(b), They both produce the same amount of light output but (a) will appear brighter in the beam angle compared to (b) at the sacrifice of light spread. ![]() | Price Ea. | ||
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BAU15S-A18-T | 597 nm | 320 lm | 360 ° | 0.19 A | $6.95 (Qty 1-349) | |
BAU15S-A30-CBT | 600 nm | 140 lm | 360 ° | 0.33 A | $5.95 (Qty 1-349) |