Blue 39mm SMF2 LED Bulb Pair Diode Dynamics

The 39mm SMF2 LED bulb is a direct replacement for any 39mm-size bulb, commonly found in dome lights, door lights, and trunk lights in many vehicles.

Populated with two 5050-size SMDs, the SMF2 upgrades the factory yellowish incandescent bulb to a more modern LED appearance.

Designed with an embedded load resistor and implanted diode, the SMF2 offers superior reliability.

Its durable metal terminals ensure a snug fit in the socket, and its lightweight construction prevents it from vibrating loose over time.

Unlike other bulbs on the market, this bulb is built with constant-current circuitry along with transient suppression.

This means this bulb will last for years, not months, with no flickering or failure.

Like every Diode Dynamics product, it's backed by an industry-leading three-year replacement.

With 39 lumens of true, measured output, the SMF2 LED will provide slightly more light output than your original 39mm-sized bulb.

If you are looking to increase output, we recommend checking out our HP6 option!

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.

In addition to vibrant colors of blue, red, green, and amber, the SMF2 is also available in a cool white 6000K and warm white 3000K option.

Whether you want a modern cool white appearance or a traditional warm white color, we have the color to fit your need!