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Description
Diode Dynamics H1 Yellow SL2 LED Bulbs (pair)FeaturesDirect plug and play replacement bulb. Available in white or selective yellow. Automotive grade LEDs for superior performance. Fanless design provides high reliability. Backed by limited lifetime warranty. Designed and engineered in USA (Patents Pending). 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. The all
FeaturesDirect plug-and-play replacement bulb.Available in white or selective yellow.Automotive-grade LEDs for superior performance.Fanless design provides high reliability.Backed by limited lifetime warranty.Designed and engineered in USA (Patents Pending).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. The all-new SL2 LED bulb is a direct plug-and-play replacement providing a significant upgrade in performance.Optimized Optical Focus. Don't be fooled by high lumen numbers. Your vehicle's fog lights are designed to focus light. If the light source in the housing is out of focus it doesn't matter how bright it is. You won't have a focused hotspot of light to shine down the road where you need it you'll just have more glare. To fix this the SL2 LED bulb was engineered to focus light from the same location as the original bulb preserving the focus and hotspot with no added glare. It produces a functional beam pattern with a stronger hotspot for added distance and visibility.Fanless Design. The SL2 was designed as a compact fanless solution. But that doesn't mean it's low-power! At 14 watts the bulb still provides plenty of output thanks to a copper-core circuit board and a thermally-optimized full-metal housing with integrated heatsink. The result is a highly-effective and reliable cooling system keeping the bulb running at maximum potential without the need for a fan.NOTE: LED bulbs are legal in the USA for Fog Light use only. Not compliant with DOT / FMVSS108 and not street legal in the USA for Headlights. International legality varies by country.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Noticeable upgrade in air quality and a seamless installation
Size: 9.3" x 9.7" x 1.8"
I'm generally skeptical of the "HEPA" marketing for automotive filters, but after installing this in my Honda, the reduction in exterior odors—especially exhaust and pollen—is actually significant. The construction feels far more robust than the flimsy OEM paper filters I’ve used in the past; the pleats are dense and well-reinforced, which gives me more confidence in its filtration efficacy over a 12,000-mile interval.
Installation was straightforward and took less than five minutes. It’s a precision fit with no gaps around the edges, ensuring that all intake air is actually being routed through the media rather than bypassing it. One thing to note is that you might notice a very slight decrease in max fan velocity due to the increased density of the HEPA material, but the tradeoff for cleaner air is well worth it in my opinion. If you live in an area with high pollution or suffer from seasonal allergies, this is a legitimate quality-of-life improvement for your daily commute.
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Reviewed in the United States on February 26, 2026
★★★★★ 5
Exact fit!
Size: 9.3" x 9.7" x 1.8"
Was a great replacement for OE on my 2012 Honda Accord. It was the exact same size as the previous filter and has no strange smells or odors. Very easy to install behind the glove box and looks great!
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Reviewed in the United States on March 23, 2026
★★★★★ 4
Bosch quality
Size: 9.3" x 9.7" x 1.8"
Fit my vehicle without any problems. Quality similar to the OEM filter and at a much better price.
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Reviewed in the United States on February 25, 2026
★★★★★ 5
Great Filter, Good Quality!
Size: 9.3" x 9.7" x 1.8"
The beauty of this filter is that it comes with very clear instructions on what to do. Not a lot of manufacturers. Give clear instructions. I got this for a 2007 MDX.
The packaging of the product itself was well done by Bosch. Installation was a breeze and as soon as I turned on the air conditioning post installation, I could tell the very clear difference.
Plus, I also got an opportunity to look at the old filter which was filled with the usual culprits and debris.
The initial airflow did have a mild smell of kerosene or like fuel. But this could also be because of the filter component itself needing to be vented out. I would recommend keeping the filter out for about 30 to 60 minutes before installation.
Once installed, however, the improvement in air quality was very evident. The fit was very good as well.
Highly recommend this. Very high quality.
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Reviewed in the United States on October 18, 2025
★★★★★ 5
Cheaper & Higher Quality Than OEM Filters
Size: 9.3" x 9.7" x 1.8"
This Bosch Filter costs less than an OEM Filter and is significantly better because it's a HEPA filter unlike the cheap filters that most automotive manufacturers use. Can't go wrong with this!
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Reviewed in the United States on May 26, 2026
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