What is a festoon bulb?

A festoon bulb is a type of light bulb that has a cylindrical shape with contacts on both ends. They are commonly used in automotive lighting applications, such as interior lights, license plate lights, and vanity mirror lights. This Diode Dynamics SMF2 LED bulb is designed to replace a 28mm festoon bulb.

How much brighter is this LED bulb compared to my original bulb?

The Diode Dynamics 28mm SMF2 LED bulb puts out 24 lumens of light. According to Diode Dynamics, this provides about double the total light compared to your original 28mm-sized bulb.

What colors are available for this bulb?

Besides amber, the SMF2 is available in blue, red, and green. It's also available in a cool white (6000K) and warm white (3000K) option.

Diode Dynamics 28mm SMF2 LED Bulb - Amber (Single)

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Diode Dynamics

Diode Dynamics 28mm SMF2 LED Bulb - Amber (Single)

Name: Diode Dynamics 28mm SMF2 LED Bulb - Amber (Single)
Brand: Diode Dynamics
Price: 6.09 USD
Availability: InStock

$6.09

Direct replacement for 28mm festoon bulbs, commonly found in vanity mirror lights. Adds a modern LED appearance.

Key Features

Direct replacement — fits factory 28mm festoon bulb sockets
Modern LED appearance — upgrades the factory yellowish incandescent bulb
Plug and play — simple installation
Durable metal terminals — fits snugly in the socket
Light weight — won't vibrate loose over time
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