Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Diode Dynamics H1 White SL2 LED Bulbs (pair)Features Direct 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.
Features Direct 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
4.3 ★★★★★
Based on 2062 reviews
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Product Reviews
★★★★★ 5
Desert dwellers love these
Size: King
These pillows are incredible. They keep our heads cool and comfortable all night long. Extremely well made and no funky smell.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
COOLING MEMORY FOAM PILLOW
Size: Queen
THESE PILLOW ARE GREAT!! THEY SEND A SMALL POUCH OF ADDITIONAL FOAM THAT CAN BE ADDED WHEN YOU NEED TO ADJUST TO YOUR COMFORT. THEY STAY COOL AND THAT IS THE BEST THING FOR THAT PERSON WHO IS ALWAYS HOT.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
No stiff neck-- just as promised!
Size: Queen
Like most people I have tried all kinds of pillows to receive my stiff neck--to no avail. I decided to spend the extra money on this (since it was returnable) expecting it not to deliver, but in hopes that it would. I am happy to say the pillow provides great support, yet is fluffy and malleable. It looks a little flat out of the box, but give it an hour or so and it expands to full "fluff". The pillow is very comfortable, provides amazing support despite its soft, fluffy feel. Not being sculpted or rigid foam, it is easy to adjust and get the right support. Somehow it works! I have not had a stiff neck since I bought this. I did add about half the bag of extra material, but removed some because it was a little too much for me. The stuffing is clean, uniform and looks pristine. It comes with a beautiful pillow case that is thick and smooths out any "lumps" (which there aren't anyway because the filling is so soft and uniform.) I plan to order another one for our other home. Highly recommend.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Great quality, not cheap but totally worth this price!
Size: King
I bought this pillow for my husband because the other I’ve purchased have gone flat. So far he is loving this pillow. It has great loft and comes with extra to adjust if necessary. I’m going to purchase one for myself as well! It is extremely comfortable!
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Reviewed in the United States on January 8, 2026
★★★★★ 4
You have to reposition to stay cool
Size: Queen
It's okay...it isn't much better than other cooling pillows I have had. If I had known you can't wash this pillow, only the outside cover, I would not have paid so much. The cover is cool to touch but the heat from your head will penetrate the pillow and I am constantly having to turn it over. So it is ok but way overpriced.
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Reviewed in the United States on August 14, 2025