What does "constant-current circuitry" mean?

Constant-current circuitry regulates the voltage to the LEDs. This keeps the light output consistent and prevents flickering, even if your vehicle's voltage fluctuates slightly. It also extends the lifespan of the LED.

What is a "festoon bulb?"

A festoon bulb is a type of bulb that is cylindrical in shape with metal caps on both ends. These caps slide into the contacts of the light fixture. This Diode Dynamics HP6 LED bulb is made to replace this style of bulb.

What if the bulb doesn't work when I install it?

LEDs are polarity-sensitive, meaning they only work in one direction. If the bulb doesn't light up, remove it, rotate it 180 degrees, and re-install. It should light up then.

Diode Dynamics 39mm HP6 LED Bulb LED - Cool - White (Single)

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Diode Dynamics

Diode Dynamics 39mm HP6 LED Bulb LED - Cool - White (Single)

Name: Diode Dynamics 39mm HP6 LED Bulb LED - Cool - White (Single)
Brand: Diode Dynamics
Price: 13.26 USD
Availability: InStock

$13.26

Brighter, modern LED light for your dome, door, or trunk. Direct fit.

Key Features

Direct replacement — fits right in place of a 39mm festoon bulb
Cool white LED — modern look
140 lumens — brighter than your factory bulb
Omnidirectional design — light shines in all directions
Lightweight — won't vibrate loose
Constant-current circuitry — prevents flickering and extends lifespan

⚠️ 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 180 vehicles

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Product Details

The 39mm HP6 LED bulb is a direct replacement for any 39mm-size bulb. The HP6 upgrades the factory yellowish incandescent bulb to a more modern LED appearance while providing far more light output than the factory bulb.