DIODE DYNAMICS · 194 · SMD2
A simple, compact LED refresh.
This exact DD0037P package includes two 194 SMD2 bulbs in Cool White (6000K). Its two surface-mount LEDs and low-profile body provide a straightforward appearance upgrade.
- Pair of two bulbs
- Cool White (6000K)
- 194 replacement

Choose the output for the space
- SMD2
- 24 lumens per bulb · low-profile two-LED design
- HP3
- 56 lumens per bulb · diffused optic
- HP5
- 92 lumens per bulb · diffused optic with copper heatsinking
This page is the SMD2 Cool White (6000K) pair. The figures above are manufacturer bulb-output ratings, not measurements in your vehicle.

Warm and cool white are separate versions
Cool White at 6000K has a crisp white appearance. It is separate from the 3000K Warm White, 4000K Natural White and 5000K Pure White versions. Choose the colour required for the particular lamp position.

The details for this pair
- Package
- Two bulbs
- Exact part
- DD0037P
- Bulb family
- 194
- Light colour
- Cool White (6000K)
- Listed output
- 24 lumens per bulb
- Operating voltage
- 9–16V DC
- Construction
- Low-profile molded body / two LEDs
- Manufacturer warranty
- Three-year limited replacement warranty
Check the actual lamp
Match the original bulb, the lamp position and the manufacturer’s vehicle application before ordering. These are individual replacement bulbs, not complete lamp housings. They do not replace the LEDs built into a factory LED assembly.
A 194-style mini-wedge is used in different positions on different vehicles, including some marker, plate and interior lamps. Do not treat a similar-looking 921 socket as a universal substitute. Check the required light colour as well as the base.
For 2021–2023 F-150 applications, follow the exact equipment and lamp-position guidance in our lighting hub. White is not a substitute for a required red rear marker or amber signal.
Install, test, then close the housing
- Switch the lighting off and let the original bulb cool before removal.
- Compare the base, retaining features and connector. Seat the replacement fully without forcing it.
- Check operation before refitting covers. For a polarity-sensitive wedge bulb, turn the power off before reversing its orientation if the supplied instructions allow it.
- Refit seals and covers, inspect the finished operation, and aim any forward-facing lamp correctly.
Bulb-out warnings or flicker require an application-specific electrical check; do not assume an anti-flicker module is included with these bulb-only pairs.
Before you fit the bulbs
Use the BTS replacement-bulb guide for the original diagrams, polarity checks and application examples. Access varies by vehicle and lamp position.
See the 194 family
Manufacturer 194 product demonstration in a license-plate application. It explains the bulb family; fitment and required colour still depend on your vehicle.
Questions before ordering
Does one package contain a pair?
Yes. DD0037P includes two bulbs in Cool White (6000K). Count your lamp positions separately before ordering.
Does it replace a factory LED assembly?
No. This product replaces a specified removable incandescent bulb. An integrated factory LED lamp needs its own compatible assembly.
Are extra modules or a new housing included?
No. This listing is for the bulb pair. Any application-specific anti-flicker modules, wiring or lamp housings are separate unless expressly listed.
What warranty applies?
Diode specifies a three-year limited replacement warranty for this bulb family. Manufacturer terms, exclusions and installation requirements apply.
Compare the related options
- Diode Dynamics 194 HP5 LED Cool White (pair)
- Diode Dynamics 194 HP3 LED Cool White (pair)
- Diode Dynamics 194 SMD2 LED Warm White (pair)
- Diode Dynamics 194 HP3 LED Warm White (pair)
- Diode Dynamics 194 HP5 LED Warm White (pair)
Explore documented F-150 applications · Read the F-150 lighting buying guide
Plan your 4Runner lighting
Compare this part with other supported applications and confirm original equipment before ordering.
Shop 2014–2024 4Runner lighting · Read the 4Runner buying guide














