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31mm SMF6 LED (one)

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Availability: In stock

Ships Monday, December 12 if ordered in the next 2 days, 20 hours and 46 minutes!

$8.00
31mm SMD6 Bulb is a direct replacement for any 29mm-33mm festoon halogen bulb.
  • Warm White
  • Cool White (6000K)
  • Red
  • Blue
  • Amber
  • Green
 
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31mm SMF6 LED (one)

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FUNCTION

31mm SMD6 Bulb is a direct replacement for almost any 29mm-33mm festoon incandescent bulb.

By changing the factory bulb to an LED, you can illuminate the area with a much brighter light, and add a pure white, luxury look.

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

 

BULB DESIGN

This bulb has six 5050-size SMDs. The bulb is made up of a board-shaped base, securely connected to high durability metal terminals. A load resistor is embedded to prevent blowing the LED from voltage surge, and a diode is implanted to protect the LED from reverse polarity. The LED is wired for 12V operation, the kind found on all vehicles.

Included in your order is ONE BULB.

 

COLOR

These LEDs are available in crisp, bright colors including Cool White, Warm White, Blue, Red, Amber, and Green.

 We strongly recommend cool white or warm white for the best visibility.

Color Reference Banner

 

BRIGHTNESS 

94 Lumens

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.

 

QUALITY

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 our 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 FAQ guide.

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  1. SMF6 Map Light/Dome Light Review by BT
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    Quality

    I replaced my map lights and dome light with this bulb and could not be happier. Installation was easy and quick. The quality of these bulbs is much better than some of the other options I have looked into. I will be replacing more in the near future and will continue to use Diode Dynamics products. (Posted on 5/9/16)

  2. Great Bulb! Review by Justin
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    Value
    Quality

    These bulbs make the interior light much more usable while giving the car a much higher end feeling. Took me less than a minute per bulb and it is definitely worth it! Fits perfectly in the Elantra GT. (Posted on 3/27/16)

  3. Great improvement Review by Sidthecat
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    Quality

    Bought the 6k cool white to replace the oem dome light in my 06 Forester and what an improvement - can't think why I'd never done it sooner. Replaced the oem map-lights at the same time. (Posted on 1/30/16)

  4. Bright and easy Review by Argo
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    Installation takes no more than 5 minutes. Very bright, only issue is with the housing it goes in. The holder is translucent so it dims the LED. No the products fault, rather the manufacturer of the trunk light housing. (Posted on 1/9/16)

  5. 2016 WRX - Dome Review by Patrick
    Quality
    Price
    Value

    Spend the extra $$ for the SMF6, you'll thank yourself. These will light up your entire cabin and then some. These go well with SMF2 on the map lights. (Posted on 10/20/15)

  6. SMF6 - Great and bright! Review by Christopher
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    Price

    I went with the SMF6 on my 2015 Impreza dome light.. Very bright! But it is perfect. Much whiter and lights the cabin brighter than stock (Posted on 8/1/15)

  7. Great stuff as always Review by LeesEvoX
    Value
    Quality
    Price

    Installed this in my lady's 2013 MX-5 Miata.. Given the stock 31mm fetsoon was just a straight tube a barely fit.. I didn't expect this to be very easy.....

    Anyway, I had to point the LED "Board" tilting upwards, kind of shining most of the light back up into the roof liner.. However, since these things are SOOO BRIGHT!! it still lights up the little Miata interior plenty. And the cool white looks great.

    Diode Dynamics also shipped out my order the same day.. I had everything received within 3 days!! (Posted on 6/23/15)

  8. Bright, tint not what I was expecting. Review by Shawn
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    Value
    Quality

    Replaced the dome light in my 13 Frontier with one of these. The light is at the back end of the cab next to the rear window, and the stock bulb just doesn't light up anything up front. The 6 LEDs are much brighter, do a great job of lighting up the rear seats and a usable amount of light ends up front. It'd be better yet if my truck had a front dome/map light, or the rear one was tilted to aim forward, but...

    My one quibble is that I ordered the warm white version, but compared to my flashlights with WW tint Cree LEDs, it's not warm at all. More of a neutral white. At least it's not the blue-white you get in cheap LEDs. (Posted on 6/19/15)

  9. Really Great LEDs Review by Curmudgeon
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    Quality

    Replaced the stock Map & dome lights in my 2014 Subaru Outback with these. I wanted increased light output so I went for the 6 LED bulbs and they are perfect. No issues with fitment. There is now plenty of light in the car and the interior looks like the real color now not yellow like the old bulbs. A must do upgrade. (Posted on 9/3/14)

  10. Quality LED's Review by Pete
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    These LED's made a tremendous difference in my interior lighting and ambiance. These are NOT the cheap Ebay LED's that fail in a year or less. These are quality LED's and they are a simple but very effective upgrade to the OEM halogen bulbs. (Posted on 7/2/14)

  11. Bright and Elegant Review by Germain
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    Quality

    I used these bulbs in my 2014 Scion tC for the dome light and trunk light. I used the cool blue and they are much brighter than OEM especially in the trunk which has very little light. They also give an elegant look in my opinion like some luxury cars. I would buy these again. (Posted on 5/16/14)

  12. Very Bright Review by Nick
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    I got this light in white for my dome light. I installed it in my 03 Mazda Protege and it fit but just barley, Its slightly too big for the housing. It is very bright and makes finding anything in my car much easier. (Posted on 1/31/14)

  13. Wonderful! Review by Tlinehan
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    The product I received is great and not only was it exactly what I expected, but the customer service was great and they will help you with any questions or problems you have. I would recommend this product and company to anyone! Will be a regular customer! (Posted on 10/6/13)

  14. BRIGHT! Review by cckecho419
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    Hands down, the highest quality lighting you can get for your car is with Diode Dynamics. This LED is incredibly bright in my trunk and the color is rich and not faded or cheap looking like some eBay bulbs. I'm never going anywhere else again for my automotive lighting needs! (Posted on 8/19/13)

  15. Looks great Review by Johne
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    I have 2 map lights in my Accord and installed D.D. Blue festoon LED's, Which is a very nice soft light when I have the dome light shut off. A great addition to the "Footwell" LED's I also have installed. Although I brought the "rear" light's up to the front for 2 in the Driver's side and Passenger side. I would highly recommend the "RF" controller for your Footwell LED's. VERY satisfied. Thanks Paul! (Posted on 7/21/13)

  16. Really brightens up the trunk Review by Robert
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    Value
    Quality

    I bought this to replace the weak, dim and useless trunk light in my car. These LEDs provide a much brighter, whiter light with a larger area of coverage than the OEM bulb. I'm very happy with them and highly recommend them. (Posted on 5/30/13)

  17. Bright and cool looking Review by Adam
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    Value

    I ordered one of these bulbs in red to use in my trunk light dome on my 2012 KIA Optima SX. It matches the rest of the car's accent lights and it is pretty bright. I believe it is a bit dimmer than the stock incandescent but that is to be expected when you get a colored light rather than pure white. I'm very satisfied with the look and it is bright enough to see everything in the trunk. (Posted on 11/9/12)

  18. Super bright Review by Nathan
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    Value

    I bought one of these for the dome light in my '11 Subaru Legacy. The overall length of it seemed to be a little long compared to the stock bulb so I had a little bit of trouble getting it seated where I was confident it wouldn't work it's way out eventually. Once I got it in it looked great. But at night it proved to be way brighter than I was expecting so I'll be switching to the 31mm 2-5050 SMD for a less overpowering white glow in the cabin. (Posted on 9/28/12)

  19. Bright and sturdy! Review by Justin
    Quality
    Price
    Value

    I recently installed these in the back dome light of my Kia Optima.

    I have a toddler that sits back there and I would not want her to be blinded. So these lights were perfect. Bright and put and nice white glow in the back but do not shine so bright that it hurts eyes.

    I would definitely recommend these for a dome light. (Posted on 9/26/12)

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 Off-Road Lighting also carry a limited lifetime 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:

Returns

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.

Exchanges

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!