Features Direct replacement for factory 39mm festoon bulb Adds more modern LED appearance Plug and play simple installation Overview Design. The 39mm SMF2 LED bulb is a direct replacement for any 39mm-size bulb commonly found in vanity mirror lights in many vehicles. Populated with two 5050-size SMDs the SMF2 upgrades the factory yellowish incandescent bulb to a more modern LED appearance while adding far more total light output than the factory bulb. The SMF2 was designed with an embedded load resistor and implanted diode for superior reliability. With its durable metal terminals it will fit snugly in the socket and its light weight means it won't vibrate loose over time. Reliability. Unlike other bulbs on the market this bulb is built with constant-current circuitry along with transient suppression. That means this bulb will last for years not months with no flickering or failure. And like every Diode Dynamics product it's backed by an industry-leading three-year replacement warranty. Brightness. With 24 lumens of true measured output the SMF2 LED will provide about double the total light compared to your original 39mm-sized bulb. All Diode Dynamics LED lighting is rated with accurate measured lumen figures not calculations or guesses. We test the true output in-house and provide you the real numbers to compare. Colors. In addition to vibrant colors of blue red amber and green the SMF2 is available in a cool white 6000K and warm white 3000K option as well. Whether you want a modern cool white appearance or a traditional warm white color we have the color to fit your need!

Additional Information

The 39mm SMF2 LED bulb is a direct replacement for any 39mm-size bulb commonly found in vanity mirror lights in many vehicles. The SMF2 upgrades the factory yellowish incandescent bulb to a more modern LED appearance with increased output.

Part Type

Multi-Purpose Light Bulb

Features and Benefits

• Direct replacement for your factory bulb
• Increased output with LED Appearance
• Molded construction with sturdy double terminals
• Plug and play simple installation

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

• Direct replacement for your factory bulb
• Increased output with LED Appearance
• Molded construction with sturdy double terminals
• Plug and play simple installation

Diode Dynamics SMF2 LED bulbs are direct replacements for your vehicle's factory bulbs. These festoon-style bulbs are commonly used in door/step, dome, map, and trunk/cargo light locations. They are populated with two 5050 size SMD to upgrade yellowish incandscents to a more modern-looking LED. Diode Dynamics SMF2 LED bulbs will provide slightly more light output than your originals.

Features:
• Designed with an embedded load resistor and implanted diode for superior reliability
• Durable lightweight metal terminals fit snugly in the socket and won't vibrate loose
• Built with constant-current circuitry, along with transient suppression to last for years, not months, with no flickering or failure
• Backed by an industry-leading 3-year replacement warranty
• Available in colors of blue, red, green, and amber, as well as a cool white 6000K and warm white 3000K

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.

Detailed Compatibility

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.