Dome Light LED for 2015-2017 Subaru WRX

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Availability: In stock

Ships Monday, May 1 if ordered in the next 2 days, 7 hours and 21 minutes!

  • Red
  • Cool White (6000K)
  • Warm White
  • Blue
  • Green
  • Amber
  • SMF2 (16 lumens)
  • SMF6 (94 lumens)
  • SMD12 Board (118 lumens)
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  • 2015 Subaru WRX STi Dome Light Collage
  • SMF6
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Your dome light, or single light located in the center of the ceiling, uses an incandescent bulb from the factory, giving it a yellowish color. By replacing with an LED, you can add a luxurious and modern look to your vehicle, with a cool white color, just like the lights on newer luxury vehicles. You can also increase the brightness with SMF6 or SMD12 Board, to improve the performance of your dome light.

The installation is 100% plug-and-play, just replace your factory bulb!



SMF2: This bulb has a standard festoon base, with two 5050-size Epistar SMDs and a protective cover for added durability and style. Direct replacement, plug and play.

SMF6: Standard festoon base, with six 5050-size Epistar SMD chips arranged on a rectangular panel. Direct replacement, plug and play.

SMD12 Board: This is an LED panel, fitted with 12 5050-size Epistar SMD chips. Comes with spring-loaded festoon-style adapter for direct installation. Plug the adapter into the bulb socket, then just stick the board in place with the mounting adhesive pad. The board-and-adapter design allows for extremely high brightness compared to a simple bulb.

Included in your order is ONE BULB.


These LEDs are available in many crisp, bright colors. White and warm white are the most popular colors, for a modern look with maximum visible light.

You can also select blue, red, green, or amber to add a unique look to your interior. Please note- when ordering these unique colors, we recommend moving to the next-brighter stage for acceptable light output.

Color Reference Banner


Diode Dynamics offers several brightness options so you can choose what fits you best.  These options are listed by the design and the lumen output of each bulb: 

SMF2: Slightly lower brightness than OEM bulbs, but still provides the crisp, modern color of LED.
SMF6: Slightly higher brightness than OEM bulbs.
SMD12 Board: Much brighter than OEM bulbs. These are bright!

Lumens: BUYER BEWARE! Most sellers just provide "calculated" lumen numbers, based on the maximum potential brightness of the LED chips on the bulb. For example, if a bulb has five 10-lumen chips, they will rate it at 50 lumens. However, this is not accurate, as the design of an LED bulb does not get rid of heat fast enough to run the LEDs at maximum.

These "calculated" lumen ratings are much, much higher than the true, measured light output, so it will look like competitors' bulbs are brighter than ours. This is because Diode Dynamics does not provide inflated "calculated" numbers; we believe it is misleading. We test the actual brightness of the bulbs in our lab, to provide real lumen output measurements. Our measurements are accurate, but they are usually much lower than the misleading "calculated" figures. Please click here to learn more about LED brightness measurement.



LED Components. Diode Dynamics uses only the highest quality LED chips in the production of its bulbs. This means we use only brand-name suppliers such as Epistar, Cree, Osram, and Samsung.

While Diode Dynamics bulbs may look the same as others on the market, most copycat bulbs use economy-grade LED chips in order to reduce costs. This greatly reduces the reliability and overall brightness of the bulb when you compare it to Diode Dynamics.

Construction. Although LED technology allows for extremely long bulb life, the market is flooded with cheap LED bulbs that fail prematurely due to inferior construction. The worst enemy of LEDs is excessive heat, and when bulbs are not designed properly, they do not disperse heat as well, leading to premature failure.

Off-brand, cheap bulbs exhibit poor solder uniformity, high levels of flux in the solder, uneven chip placement, low-gauge terminal wires, poor assembly, and bulbs held together with inferior adhesives. At best, solder joints will crack and fail on low-quality LEDs after a few weeks of use. In the worst case, these bulbs can damage housings as the extra flux and adhesive evaporates and creates a residue on the lens of the housing.

Diode Dynamics bulbs are produced with modern, computerized equipment, and only the best materials, to ensure complete uniformity, high quality, and long bulb life.

All Diode Dynamics products come with a 30-day satisfaction guarantee and a 3-year limited replacement warranty. For more information, please view the Warranty Information page.

Bulb Size 31mm Festoon, also known as 3021 2033 3175 6428 6430
Year 2015,2016,2017
Make Subaru
Model WRX
Application LED Bulbs
  1. Awesome quality and color output Review by Edwin

    Designed perfectly for the wrx dome light housing. The color is very deep and shines throughout the entire vehicle perfectly.will purchase another one to put in the opposite side of the housing. Yes, 2 of the SMD12 boards can fit in the dome light housing. (Posted on 3/1/17)

  2. A must have Review by T

    Great upgrade from the stock lights. Just make sure your install them with patience. The bulbs can break if your not careful. Overall, one essential to do to your interior. (Posted on 2/17/17)

  3. Super Bright Review by Akuma

    This bulb is super bright! It brightens up the whole cabin and looks great in white instead of the ugly stock yellow. Thanks Diode Dynamics! (Posted on 12/29/16)

  4. $$$ well spent Review by Marck

    Bought these lights to upgrade the interior of my wrx. It's really a no brainer, 100x better than stock bulbs. Don't hesitate in buying these. (Posted on 11/5/16)

  5. Perfect like always! Review by Dustin

    Bought these along with other diode dynamic interior lights and boy does it help brighten up the cabin of the car. Also the benefit to choose what color bulb you want for the interior is a giant plus. (Posted on 9/5/16)

  6. Great quality for the price Review by Matt

    Two big thumbs up (Posted on 8/31/16)

  7. Quality Product for the price Review by Matt

    Great value with 3 year warranty (Posted on 8/31/16)

  8. Definitely worth every penny Review by Trae

    In the new 2015+ WRX, the stock map lights leave a lot to be desired. It appears that instead of going with the previous year's design, they tried to make the map lights only have a small opening for the light to escape. While this does help with glare from the map lights, as well as create a tighter beam area, it seems to also have the effect of making the lights ... well, useless. These LEDs are the answer. In combination with the newer map light housing on the 2015+ WRX, they create an awesomely bright cool white with a very tight beam area. Absolutely would buy again. (Posted on 7/31/16)

  9. Work great Review by Trae

    These are extremely bright. The fitment is interesting due to it being a board, but still easy to install. Overall it was a night and day difference, totally worth it. (Posted on 7/31/16)

  10. SMD12 board is amazing!!! Review by Alex

    I bought this replacement dome light a few weeks back and I have to say the SMD12 board puts out some crazy light compared to the stock. Even in the daytime this thing is super bright and at night the thing lights up the entire back and even some of the front of the car. Installation was a breeze. Definitely wouldn't hesitate to buy this light for your car if I was you. (Posted on 7/2/16)

  11. Bright and Easy Review by Davon

    Love the Lights, looks great and was super quick delivery. (Posted on 5/3/16)

  12. The board was so bright I wanted more... Review by Nick

    Let me start off by saying thsnk you to DD! Always top notch products and service. I ordered the the SMD 12 board for my 15' WRX and it was perfect fitment and came with everything needed for simple install. After installing, I noticed there was room in the dome for another board. So naturally I jump on the site and order another. Even though knowingly I had to modify and connect the two boards together I did so for even greater output. The final product is astounding!!! There isn't anything I can't find at night. The output is crazy bright! Absolutely best dome light on the market! THANK YOU Diode Dynamics!! (Posted on 4/17/16)

  13. Dome SMD12 (118 lumens) & Map light : I am feeling BLUE Review by Tron

    Needed more blue lumens for the back of the car..Got the SMD-12 board for the Dome light... makes a big difference of Blue light in place of the smaller/lesser lLED dome models.

    Very satisfied with cool blue look. (Posted on 4/14/16)

  14. Great Product Review by Ethan

    Looks good, and easy to install. Very well built. (Posted on 3/11/16)

  15. Much better illumination! Review by Prashin

    I bought and installed the SMF6 diode in 6000K for my WRX trunk and it's amazing upgrade. The installation was incredibly simple and I was admiring the increase in light quality and quantity in less than 5 minutes. The bright white from this diode is much better than the dull yellow of the stock bulb and illuminates a lot more of the cabin. I highly recommend combining this diodewith the same SMF6 diode for the map lights. I've also submitted pictures of 3 SMF6 diodes installed (dome + 2 map lights) Greatly recommended purchase! (Posted on 12/21/15)

  16. Looks good Review by Whitewrx

    These are super bright! Looks so much better than the stock lights. I wish I would of went with the blue led to match everything else I got but they were out of stock when I ordered them. (Posted on 12/14/15)

Worry-free warranty

  • -Full 3-year warranty on all products
  • -No waiting: we usually send new items out with a return label (US customers only)


You will get quick help from our trained staff for any issues.

All Stage Series products carry a limited 8-year warranty.

For further details, please see our full article.

Domestic (US) Customers

  • - Just $5 per order with our Diode Delivers program
  • - Same-day shipping for all orders placed by 12:00 PM CST (or until 4 PM with rush processing)
  • - USPS, for delivery in 2-4 days (on average)
  • - Express services are available, see exact pricing at checkout
  • - Fully Insured


International Customers

  • - We ship to all countries via standard mail
  • - Usually around $10 for LEDs, or $25 for HIDs.
  • - Choose your service on checkout to see exact prices:
  • - USPS 1st Class: 2-5 weeks
  • - USPS Priority: 1-2 weeks
  • - Express EMS: 1 week
  • - Please email us if you are unsure about shipping to your country.

You will receive updates from our site when your order is shipped, along with a unique shipment number to ensure that your order is correctly accounted for. This allows you to easily reply to us if you have any concerns.

Whether your order is big or small, it is tested through many run cycles, and each bulb is tested before shipment. Every single bulb. Every time. And if anything does go wrong, you can rely on our industry-leading warranty for worry-free replacement.

If you're not happy with your items, we want to make it right. So we have some pretty awesome return policies:


30 day return policy. All customers have 30 days from the date of original order shipment to return items.

Full refund, no fees. At Diode Dynamics, we offer free returns. That means no restocking fees, no administrative fees, and no hassle!

 Free return label. If your original order was over $50, you get a free return label for your items (US customers only). If your order was less than $50 or international, you can send the items back through your preferred method.


Within 30 days: If your original order was over $50, you can get new items shipped to you with a return label (US customers only). If your order was less than $50 or international, we can send you the new items first, but you are responsible for returning the old items.

Within 90 days: Any item can be returned for exchange or store credit within 90 days. The buyer is responsible for the cost of the return shipping, and must first return the old items. We'll still cover the postage for the new items.


Please note: due to the nature of custom acrylic pieces, we cannot offer any refund or exchange for returned custom acrylic items.


To make a return or exchange, please request an RMA, or give us a call. When we get it back, you will be notified and credited appropriately.

Again, all returns must be approved, with an RMA. This is so that we can process your return as quickly as possible when we get it. If you would like to return an item, please Request an RMA. Please include as much information as possible about the reason for return.

Alternatively, you can also send us a message, or give us a call!