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31mm SMF2 LED (pair)

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Availability: In stock

Ships Monday, December 12 if ordered in the next 2 days, 22 hours and 28 minutes!

$10.00
31mm SMD2 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 SMF2 LED (pair)

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FUNCTION

31mm SMF2 Bulb is a direct replacement for any 29mm-33mm festoon halogen 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 two 5050-size SMDs. The bulb is made up of a 31mm sized base with glass tube for an OEM look, as well as 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 a pair of bulbs.

 

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

16 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. great product Review by Mo
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    This is a great product. Nice brightness and nice colour tone. (Posted on 5/30/16)

  2. Much better then SMF1 Review by Justin
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    These bulbs are much better than the SMF1 bulb. The light is very useable and perfect for vanity lights. Would definitely recommend! Used in my 2013 Hyundai Elantra GT. (Posted on 3/27/16)

  3. Great improvement Review by Sidthecat
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    Fitted in the map-lights of my06 Forester and what an improvement - 6k cool white so much better than the oem lights. Changed the dome and trunk lights to 6k at the same time. (Posted on 1/30/16)

  4. Excellent product Review by Sultan
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    very good bright . easy to install . (Posted on 12/14/15)

  5. 2016 WRX - Map Review by Patrick
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    Great compliment to the SMF6 dome leds. These are extremely bright! (Posted on 10/20/15)

  6. SMF2 - Great and bright! Review by Christopher
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    I went with the SMF2 on my 2015 Impreza map lights.. Pretty bright, but I don't think it is much brighter than stock, just whiter. But it is perfect. I paired these with the SMF6 dome light, and that is a perfect balance. I would not want it any brighter. (Posted on 8/1/15)

  7. Fit in MY15 WRX Review by Ken
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    Alright so a lot of people were worried these may not work due to being labeled under vehicle fitment as 11-14 but I just installed these in MY15 WRX. Now, one word of advice, TEST POLARITY before committing to the final placement. What I mean by this is, simply test which side is going to work by resting it on the metal tabs where these install, if the bulb doesn't work then flip the bulb. One thing to note on the 15 WRX the map light is deep, it took some tools to get them out so I made sure to test the polarity as removing them would be a pain. You may have to bend the metal tab that these rest in as OEM on MY15 are 29mm festoon, but they still fit and look great so -1 star for not having a 29mm festoon. (Posted on 5/20/15)

  8. Perfect Fit for Toyota Matrix Review by Robert
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    I ordered these bulbs for the interior lights of my 2008 Toyota Matrix. The stock bulbs didn't deliver a great deal of light and I was looking for something brighter. These were a perfect fit and really brightened up the interior of the car. (Posted on 1/18/15)

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 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!