How much brighter are these than stock bulbs?

The HP24 puts out 410 lumens, which is about twice the light output of a standard factory bulb. That's a noticeable improvement in brightness.

Will these bulbs flicker or fail quickly?

No, these bulbs are built with constant-current circuitry and transient suppression. This design helps prevent flickering and ensures a long lifespan. Diode Dynamics backs these bulbs with a three-year replacement warranty.

Do I need any special tools or skills to install these?

No, the HP24 bulbs are designed for plug-and-play installation. Simply remove your factory bulb and plug the HP24 into the socket. The installation can be done in minutes.

Diode Dynamics 3157 LED Bulb HP24 Dual-Color LED - Cool - White (Pair)

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Diode Dynamics

Diode Dynamics 3157 LED Bulb HP24 Dual-Color LED - Cool - White (Pair)

Name: Diode Dynamics 3157 LED Bulb HP24 Dual-Color LED - Cool - White (Pair)
Brand: Diode Dynamics
Price: 81.87 USD
Availability: InStock

$81.87

Adds a white running light and amber turn signal to your vehicle. Simple plug-and-play installation.

Key Features

Direct replacement — fits factory 3156/3157 sockets
Dual-color function — cool white running light and amber turn signal
Samsung LEDs — well-built and bright
Aluminum housing — dissipates heat to prolong lifespan
Non-polar and CK compatible — fits a variety of vehicles
Plug and play — simple installation

⚠️ 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 1475 vehicles

Need Help?

631-982-0042

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Since 1957

Family-owned

Product Details

Add dual-color functionality and a modern appearance to your front turn signals with the 3156/3157 HP24 turn signal bulb. This bulb lights up white when your headlights are turned on and flashes amber when the turn signals are activated.