SKU: 38475284441

Diode Dynamics H10 SL1 LED Headlight Single

Sale price$60.71 Regular price$67.45
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Description

Diode Dynamics H10 SL1 LED Headlight SingleAftermarket or OEM If you're looking to improve visibility on your vehicle at night, you've probably found many options for LED upgrades. Most bulbs on the market are too big to install, don't work with the electrical system, and have no focus or hotspot in the beam pattern. Even if they come close on those aspects, they still aren't anything close to the quality you would find with factory installed lighting. Like most aftermarket products, most LED

Aftermarket or OEM If you're looking to improve visibility on your vehicle at night, you've probably found many options for LED upgrades. Most bulbs on the market are too big to install, don't work with the electrical system, and have no focus or hotspot in the beam pattern. Even if they come close on those aspects, they still aren't anything close to the quality you would find with factory-installed lighting. Like most aftermarket products, most LED bulbs are not engineered and tested for long-term reliability.
With the SL1 LED, Diode Dynamics set out to engineer a true OEM-grade solution. With its compact size, optically correct output, flow-simulated cooling, and boost-mode electrical circuit, our SL1 LED patented design is a properly-engineered solution that finally provides a true upgrade in performance, with high reliability: and it's tested and validated to meet those standards, just like OEM lighting.
Compact Size. Your order includes two bulbs, to replace the factory bulbs in your vehicle. The bulbs are compact in size, in a patented design that isn't much bigger than the original halogen bulb. The drivers are compact too! If you have a sealed headlamp, they are designed to fit inside. The drivers and bulbs are tested to last over time, even when sealed inside with the heat of the headlamp. Please note that if you are replacing a high beam / DRL bulb, the DRL function may no longer work, depending on your vehicle. Please see further information on Vehicle-Specific product listings, or contact us.
Street Legal Output. Don't be fooled by high lumen numbers or projector specific bulbs. Your vehicle's headlights are designed as a system, to focus light. If the light source in that system 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, you'll just have more glare. To correct this, the SL1 LED headlight bulb was engineered with advanced optical design software, which simulates each ray of light in a process known as ray tracing. Using this tool, our engineers perfectly matched the filament location, allowing the SL1 LED to focus light just like your original bulb, preserving the focus and hotspot, with no added glare. It produces a functional pattern on the road, with a stronger hotspot for added distance. This is a safe, functional output, in compliance with photometric standards, which we call Street Legal.
Daytime Running Light. Daytime Running Lights (DRLs) are lights that illuminate when the vehicle is running, and when all other lights are turned off. Some vehicles use the high beam bulb as the daytime running light. If your vehicle uses voltage drop for the DRL signal, the SL1 will operate at full brightness. If your vehicle uses PWM for the DRL signal, the SL1 will operate at a reduced brightness level just like your factory halogen bulb would.
Tested to Perform. We test the SL1 bulb in factory headlamps, and measure the entire beam pattern using specialized equipment. It's an elaborate affair: a headlight is mounted to a computer-controlled rotating head called a goniometer. Light shines down a tunnel, where a sensor collects data as the headlight is rotated. The entire beam pattern is mapped, and we compare the total output to the original halogen, confirming that the SL1 bulb shines more light in the hotspot, without adding extra glare on the road. The test results speak for themselves: in most lamps, like the 2015 F-150 Halogen lamp, there is 30-70 percent more light in the critical hotspot, with no added glare or spread of light. With proper optical engineering, testing, and validation in the application, we can assure correct optical performance.
Staying Cool. You may have seen bulbs that use large straps for cooling, or big fans that just make noise. These bulbs still run hot, pushing the LEDs past their limits, resulting in degradation of output after a few months. When it comes to cooling, proper engineering is required to efficiently remove heat from the bulb. In the SL1, it comes together as a whole system that was extensively tested, with dozens of iterations to achieve the best cooling performance possible. It includes a direct-solder copper core board, thermal phase-change interface material, and thermally-modeled zinc casting get heat to the base, where base fins are designed for aerodynamic performance in conjunction with the flow rate and pressure of the Sunon bearingless microfan. The result is a highly-effective and reliable cooling system, keeping the bulb running at maximum potential.
Fitment. With its patented design, the SL1 LED fits where other bulbs won't, without cutting or modification. There's no hanging metal straps, just a compact bulb that plugs right in, with an exclusive reinforced shroud to keep the heat off any other components or wiring. Only slightly larger than a standard halogen bulb, it fits behind dust caps and in tight spaces. The driver and bulb are tested to function when sealed inside the headlamp - no worries about heat buildup! The base sizes on the bulb are also are keyed for exact applications, not one-size-fits-all, and the compact driver easily tucks away.
Driven. Rather than a simple buck regulator found on other bulbs, the SL1 uses a unique boost-mode circuit, which prevents thermal imbalance in the LEDs over time - again, just like you would find in OEM LEDs. It also has transient protection for long life in automotive circuits. Diode Dynamics engineers also analyzed dozens of OEM electrical systems, and added current-monitoring circuitry to mimic the electrical characteristic of halogen bulbs, drastically reducing the need for CAN-BUS adapters (though they're still needed on some applications).
Reliability. Every part of the SL1 LED was designed for reliability, from the custom wiring with strain reliefs and solderless terminals, to the exclusive zinc castings, to the reinforced high-temperature PP-GF plastics (the same used in halogen bulb bases). Each component was designed and tested, with dozens of variations of each component reviewed until we achieved the maximum performance possible. Finally, the SL1 was put through its paces in our environmental testing chambers - where the bulb successfully performed through dozens of thermal cycles, from -40 through 85 degrees Celsius (-40 to 185F). Whether you're in the Sahara or northern Canada, the SL1 will keep performing for years, and is backed by a three year warranty.Experience. After over a decade in business, Diode Dynamics is one of the most trusted names in automotive LED lighting. We directly manufacture and engineer our own products in the United States, allowing for higher quality and performance, with the newest and brightest LED technology. No matter what you're driving, we pride ourselves in offering only the best possible LED solutions.Features

H10 SL1 LED Headlight Single
Low or high beam LED headlight replacement
Correct optical focus for increased output with no added glare
Perfect H10 fitment, no modification needed
Designed and validated to OEM lighting standards
Engineered and Manufactured in USA

What's Included

Quantity: Single or Pair
Warranty: 3 year warranty
Return Policy: 30-day Return with no restocking fee
100 percent Satisfaction Guarantee

Fitment

Bulb Size: H10
DRL Function: Operates at full brightness for DRL

Specifications

Measured Lumens: 1630 (per bulb)
Color Temp (CCT): 5700K
Power (watts): 20.2
Operating Voltage: 5-16V
Current (amps at 13.2V): 1.58
Polarity: Polarity Specific
Operating Temperature: -40C to 85C (-40F to 185F)
LED Emitter: Luxeon Z ES
Connector(s): OEM-Size Plug and Play
Driver Features: External, Waterproof, Constant Current
Driver Dimensions: 2.19 Inch x 1.13 Inch x 0.56 Inch
Materials: Copper PCB, PP-TD30 Base, Zinc Heatsink
Cooling: Active, Mag-Lev Microfan
Compliance Ratings: FMVSS108 Beam Pattern, SAE J575 Durability Test
Patent: US D824052

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 38475284441

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4.6 ★★★★★
Based on 25 reviews
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Verified Purchase
Jaxsology
Draper, US
★★★★★ 4
Fairly Priced and Fairly Nice iPad Pro Case
Color: Light Pink
I was on the hunt for a case for my iPad Pro (6th generation), and let me tell you, it was a wild ride! I scoured every review I could find, but it was like trying to find a needle in a haystack. The ones that were reasonably priced had all sorts of issues, and the ones that looked fancy were way too expensive and had just as many problems. Now, I know what you might be thinking: “You get what you pay for, right?” Well, I was determined to find a case that fit my budget and didn’t have too many complaints. After hours of searching, I finally stumbled upon a case that seemed to be a reasonable match. Here’s why I picked this one: It has most of the features I wanted. It covers the lens on the back of the iPad, and there’s a holder on top for the pencil allowing it to charge. I’ve gone through two cases before, and they all started to wear out pretty quickly. I didn’t want to spend a fortune on another case that would just fall apart so I found this one to be reasonably priced. The case itself is nice and sturdy, and it’s a great fit for my iPad. I charged the keyboard for the recommended 5 hours before I first used it, and I haven’t had a chance to test the battery life yet. But after charging, it was a breeze to connect it to my iPad. A little heads up: the connect button is actually the “C” on the keyboard, not the command or control key. I know, I know, confusing! But once you press the keys, Bluetooth turns on, and connection to the iPad went without any issues. I’ve seen some reviews mentioning that special characters weren’t working or that the keyboard would just stop working randomly. But so far, everything seems to be working perfectly. I’ll definitely update this review if anything changes. One thing I really like about this keyboard case is that once it’s connected, you don’t have to reconnect it again. That’s a huge plus! Another cool feature is that the instructions for pairing and using the keyboard are right on the bottom of the keyboard, which is super handy. Pros: - style and fit. - different angles for propping iPad while typing or watching videos - instructions for pairing and use on the bottom of the keyboard, Cons: - The only downside I’ve found so far is that you can’t swivel the iPad from landscape to portrait because the case doesn’t allow for that movement. For me this is a minor inconvenience, because I just close the case and turn it to portrait. If that’s important to you, then this might not be the case for you. Another thing I have noticed is that sometime while I am typing, and I type fast, I will hit something and get dragged somewhere else on the screen. I think this is a user inspired issue, but it is not that big a deal for me. Overall, this is a good functional case with a pretty good keyboard and iPad protection. I’m giving it 4 stars explained below. My Stars Explained 5 - Like finding money in your old coat pocket - pure joy! 4 - Almost perfect - like a pizza with just one missing topping. 3 - Like a movie that’s just okay—neither a blockbuster nor a total flop 2 - Like a blind date that went horribly wrong - cringeworthy. 1 - Like stepping on a Lego in the dark - painful.
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Reviewed in the United States on October 22, 2025
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Verified Purchase
Shannon
Carnegie, US
★★★★★ 5
Love this case!
Color: Light Pink
This is an awesome case! Fits perfectly and love the color. Sturdy and does the job! Will be great for college!
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Reviewed in the United States on April 7, 2026
M
Verified Purchase
Ms B
Lowell, US
★★★★★ 5
Perfect fit, secure pencil slot, great touchpad.
Color: Navy Blue
EXCELLENT Keyboard case. I tried several to find the right one. Tried a bluetooth keyboard by itself, but there wasn't the convenience of an "all in one". Tried another one that had a magnetic connection between the ipad and the keyboard, but the ipad was not as positionable as I needed it to be. This "folio-type" case is similar to what I use for all my other tablets and devices - slim, securely closing, perfectly fitting my 3rd gen ipad pro - AND the slot for the apple pencil is PERFECTION! The touchpad is a little stiffer than I like but then I realized I DON'T actually have to press it to use it - just a tap accomplishes the same thing. I rely on the touchpad for a lot and this case is just really exactly what I need.
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Reviewed in the United States on February 27, 2026
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Verified Purchase
StellaMoger
Los Angeles, US
★★★★★ 5
good value and battery life
Color: Purple
Love this!! the keyboard has a good life on it and charges pretty fast. I at first didn't really like that it detaches, but being able to hold the keyboard in my lap and type on the screen while I sit on the sofa is actually pretty nice. the trackpad does have a bit of a learning curve, but gestures/hotkeys are all listed on the bottom so it's easy to check whenever necessary. The material of the case itself also cleans really easy. I spilled a drink on it and it wiped right off. I feel like this is a pretty good value all things considered, especially when similar products at big box stores can eb a couple hudnred bucks. The only downside is that the keyboard, while slim, does add a bit of bulk to the case. It's not a huge deal for me, but my boyfriend who also has an ipad did notice the difference immediately.
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Reviewed in the United States on April 20, 2026
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Verified Purchase
Mikki Cheatham
New York, US
★★★★★ 3
Works
Color: Light Gray
Heavy! It is a nice case and the keyboard works good. Turns off randomly, but not too annoying. This case is heavy though! It at least triples the weight of my iPad, which is opposite the reason I got an iPad Air. Too late to return, I just take the keyboard out, but it must be the magnets in the case that are so heavy.
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Reviewed in the United States on February 5, 2026

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