How bright is this bulb?

The SMF2 LED provides 24 lumens of measured output, about double the total light compared to your original 39mm-sized bulb. Diode Dynamics tests the true output in-house and provides real numbers to compare.

What if the bulb fails?

This bulb is built with constant-current circuitry along with transient suppression, so it should last for years, not months, with no flickering or failure. Like every Diode Dynamics product, it's backed by a three-year replacement warranty.

Diode Dynamics

Diode Dynamics 39mm SMF2 LED Bulb - Green (Pair)

Name: Diode Dynamics 39mm SMF2 LED Bulb - Green (Pair)
Brand: Diode Dynamics
Price: 12.24 USD
Availability: InStock

$12.24

Direct replacement for your factory 39mm bulb. Adds a modern LED look with simple plug-and-play installation.

Key Features

Direct replacement — fits factory 39mm festoon bulb sockets
Modern LED appearance — upgrades the factory yellowish incandescent bulb
Plug and play — simple installation
Embedded load resistor and implanted diode — for strong reliability
24 lumens of measured output — provides about double the total light compared to your original bulb
Constant-current circuitry and transient suppression — long-lasting with no flickering or failure

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Will this fit your vehicle?

Compatible with 198 vehicles

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Since 1957

Family-owned

Product Details

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.