CF13 (EP34) LED Flasher Module

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Fix hyperblinking!

CF13 (EP34) LED Flasher Module

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This universal LED Flasher Module is used to regulate the turn signals to normal speed when LEDs are installed. It is a way to fix the "hyperblink" issue many newer cars have when LED turn signals are installed.

Please check to make sure your flasher module is accessible for easy replacement. This module uses three prongs, universal fitment.

Operation and size: CF13

Year No
Make No
Model No
Application LED Flashers
  1. Worth it! Review by John

    I bought this along with the switchback turn signal LEDs for my 2011 Hyundai Genesis Coupe. Installation was very easy: there is a thread on that has step-by-step installation instructions with pictures! The flasher works perfectly, and I actually prefer it's ticking noise to the OEM flasher's ticking noise. The flasher performs exactly as described and solved the hyperblinking. Definitely a good buy! (Posted on 6/14/14)

  2. Clean install Review by BGarr

    So much easier to install than the cable splice. Hook it up and tuck it away and no more hyper flash. Easy as that! (Posted on 5/19/14)

  3. Perfect Review by Kevin Ahn

    Ordered this to fix my hyperblinking (Every exterior bulb is LED)

    Easily removed stock one, plugged this in with the connectors that came with it

    Hyperblinking Gone! (Posted on 1/18/14)

  4. Amazing! Review by Tyler

    Install was easy, and it nstantly worked! Definitely recommend! (Posted on 7/18/13)

  5. Super Easy Install & Instant Fix! Review by Ryan

    I installed the CF13 flasher on my 2010 Genesis Coupe after having custom headlights and taillights built and the one module clears up all of the problems for all LED bulbs on the car!

    Having the jumpers come in the package helped immensely in my application. Diode Dynamics truly thought of everything! (Posted on 6/13/13)

  6. Worked Great! Review by YT

    Replaced the flasher on my 2000 Nissan Maxima and no hyperflashing! I have all LED exterior lights and replacing the flaher with this one EP-34 / CF-13 solved it! (Posted on 6/4/13)

  7. Outstanding! Review by Anh

    Quick and easy installation, the most easiest part to install and it works like a charm! (Posted on 7/19/12)

  8. Worked Flawlessly! Review by Brenden

    Bought this after having issues with a flasher that I got locally (didn't work with LEDs in the front and rear of the car). Got the flasher from Diode Dynamics and everything worked great! (Posted on 6/15/12)

  9. Great Buy and Great Look Review by J.Wiese

    Installing the CF13 is easy and the results are great. (Posted on 4/16/12)

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:


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!