What size are these bulbs?

These LED replacement bulbs are 28mm in size. They are made to replace any factory 28mm festoon bulb, which are commonly found in vanity mirror lights in many vehicles. Refer to your vehicle's service manual to confirm bulb size.

How bright are these bulbs?

The SMF2 LED bulb provides 24 lumens of light output. According to Diode Dynamics, this is about double the total light compared to your original 28mm-sized bulb. This provides a noticeable improvement in brightness.

What is the color temperature of these LED bulbs?

These bulbs are the cool white option, which has a color temperature of 6000K. This provides a modern, clean look compared to the yellowish color of a standard incandescent bulb. If you prefer a warmer, more traditional look, Diode Dynamics also offers a 3000K warm white option.

Diode Dynamics

Diode Dynamics 28mm SMF2 LED Bulb - Cool - White Set of 4

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

$24.52

Direct replacement for factory 28mm festoon bulbs. Adds a modern LED appearance with simple plug-and-play installation.

Key Features

Direct replacement — fits factory 28mm festoon bulb sockets
Modern LED appearance — upgrades the factory yellowish incandescent bulb
Plug and play — simple installation
24 lumens — about double the total light compared to your original bulb
Cool white (6000K) — choose a modern look
Constant-current circuitry — lasts for years, not months, 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 193 vehicles

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Product Details

The 28mm SMF2 LED bulb is a direct replacement for any 28mm-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.