Are these bulbs street legal?

In the USA, these LED bulbs are legal for fog light use only. They do not comply with DOT / FMVSS108 regulations for headlight use. Always check local laws to ensure compliance.

What improvements does the SL2 have over the SLF?

The SL2 features a more compact design and an internal driver. It also has improved reliability compared to the SLF. The SL2 is a direct plug-and-play replacement.

How does the fanless design affect the bulb's performance?

The fanless design increases reliability by removing a common failure point. The bulb still provides plenty of output at 14 watts, thanks to a copper-core circuit board and a thermally-optimized full-metal housing with integrated heatsink. This results in a highly effective and reliable cooling system.

Diode Dynamics

Diode Dynamics H1 Yellow SL2 LED Bulbs (pair)

Name: Diode Dynamics H1 Yellow SL2 LED Bulbs (pair)
Brand: Diode Dynamics
Price: 163.79 USD
Availability: InStock

$163.79

Direct plug-and-play H1 LED replacement bulb for fog lights. Fanless design provides high reliability.

Key Features

Direct replacement — plugs right in
Available in white or selective yellow
Automotive-grade LEDs — well-built performance
Fanless design — high reliability
Optimized optical focus — stronger hotspot for added distance and visibility

⚠️ 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 50 vehicles

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Since 1957

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Product Details

Introducing the SL2 LED Bulb! As a replacement for our popular SLF bulb the SL2 features a number of upgrades including a more compact design internal driver and improved reliability.