What size is this bulb?

This Diode Dynamics SMF2 LED bulb is a direct replacement for any 28mm-size bulb, commonly found in vanity mirror lights in many vehicles. It's populated with two 5050-size SMDs, which upgrades the factory yellowish incandescent bulb to a more modern LED appearance.

How bright is this LED bulb?

The SMF2 LED provides 24 lumens of measured output, about double the total light compared to your original 28mm-sized bulb. Diode Dynamics tests the true output in-house and provides real numbers to compare.

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 28mm SMF2 LED Bulb - Blue Set of 4

Name: Diode Dynamics 28mm SMF2 LED Bulb - Blue Set of 4
Brand: Diode Dynamics
Price: 24.52 USD
Availability: InStock

$24.52

Direct replacement for your factory 28mm festoon bulb. Adds a modern LED appearance with a blue color.

Key Features

Direct replacement — swaps right in for the factory 28mm festoon bulb
Modern LED appearance — updates your interior lighting
Simple plug-and-play installation — installs easily
24 lumens output — provides about double the light of the original bulb
Constant-current circuitry — prevents flickering and extends lifespan
Transient suppression — protects against voltage spikes

⚠️ 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