What size is this bulb?

This is a 39mm festoon bulb. It is a direct replacement for any 39mm-size bulb, commonly found in vanity mirror lights in many vehicles.

How bright is this bulb?

The SMF2 LED will provide 24 lumens of light. This is about double the total light compared to your original 39mm-sized bulb.

How long will this bulb last?

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. It's also backed by a three-year replacement warranty.

Diode Dynamics

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

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

$12.24

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

Key Features

Direct replacement — fits factory 39mm festoon bulb sockets
LED appearance — adds a modern look
Plug and play — simple installation
5050-size SMDs — more light output than factory bulb
Embedded load resistor and implanted diode — improved reliability
Constant-current circuitry — lasts for years, not months

⚠️ 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