After a full year of development and testing, Lasfit is proud to launch the all-new 2025 D Series LED brake/tail lights on May 21, 2025. Designed from the ground up with smarter CANBUS decoding, advanced heat management, and a revolutionary light distribution system, these are the best LED tail lights Lasfit has ever made.
Want to know the story behind this breakthrough? Check out more information about the behind-the-scenes discussion between our product and sales teams.
In this blog, we’ll focus on common problems with aftermarket LED brake/tail lights — and how Lasfit’s 2025 D Series tackles each of them head-on.
Common Issues with Aftermarket LED Brake/Tail Lights
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Inconsistent Brightness
While LED lights are generally brighter than halogen, many low-quality LEDs still suffer from dim output due to subpar chip quality and poor power design. Some barely outshine stock bulbs. -
Poor Brightness Differentiation Between Tail and Brake
OEM halogen bulbs typically use dual filaments to achieve two distinct brightness levels—one for tail lights, and one for brake lights. Many aftermarket LEDs fail to replicate this distinction clearly, resulting in confusing and unsafe lighting performance. -
Dark Spots
Unlike halogen bulbs that emit light in all directions, LEDs rely on the orientation of surface-mounted chips. Without precise engineering and testing, light distribution can be uneven, leaving noticeable dark spots in your tail housing. -
Hyper Flash and Dashboard Errors
LEDs consume less power than halogen bulbs. This difference can trigger the vehicle’s onboard computer to detect a "fault" — causing hyper flash or dashboard error codes if the LED lacks proper resistors or decoding. -
Overheating and Short Lifespan
High-performance LEDs generate heat. Without effective thermal management, that heat builds up, leading to early burnout and frequent replacements — not to mention the hassle of taking apart your tail light housing again and again. -
CK vs Non-CK Socket Confusion
Some vehicles use CK sockets, which wire power differently. Many LED bulbs aren’t compatible with CK configurations, and most drivers don’t know which type their car uses—leading to compatibility issues and installation headaches.
How Lasfit’s 2025 D Series Solves These Issues
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Brighter, Safer Red Illumination
Each D Series bulb delivers a powerful 24W and 2400 lumens of output, offering a sharp, vibrant red that dramatically improves visibility and reaction time compared to stock bulbs.
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Smarter Brightness Differentiation
We’ve equipped the red D Series with two sets of premium LED chips:
3 × 1860 chips for low-power tail light mode
8 × 3575 chips for high-power brake light mode
This ensures a clearly defined contrast between tail and brake functions—just like OEM dual-filament designs, only smarter and brighter. -
360° No-Dark-Spot Coverage
Thanks to a top-mounted chip layout and a built-in clear lens cap, the D Series provides even, soft, and glare-free illumination in all directions—solving the "dark spot" issue once and for all. -
Advanced Stronger CANBUS Decoding
Lasift all new D series led brake tail lights have stable high-power that ensure compatibility with modern vehicle systems, eliminating hyper flash and error codes without needing external resistors.
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Innovative Mini Cooling Fan
To manage heat, the D Series includes a high-efficiency built-in mini fan that actively pulls heat away from the LEDs—prolonging the bulb’s life and maintaining performance over time.
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Non-Polarity + CK-Compatible Design
No more guesswork. With a compact size (2.36” tall × 0.78” wide) and non-polarity design, installation is truly plug-and-play—no need to worry about CK vs non-CK sockets.
Available Bulb Size for D Series
| Product | Series | Color | Bulb Size | Price | Location |
|---|---|---|---|---|---|
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D-Series | Red | 7443 | $59.99 | Rear turn signal lights/brake/tail lights |
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D-Series | Red | 4257 | $59.99 | Rear turn signal lights/brake/tail lights |
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D-Series | Red | 3157 | $59.99 | Rear turn signal lights/brake/tail lights |
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D-Series | Red | 1156 | $59.99 | Rear turn signal lights/brake/tail lights |
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D-Series | Red | 1157 | $59.99 | Rear turn signal lights/brake/tail lights |
Limited-Time Launch Offer – 15% OFF
Lasfit’s all-new D Series LED brake lights are now available! From May 27 to June 30, use code 5MAYD15 at checkout to save 15%.
Upgrade today and experience the difference—brighter light, safer driving, and smarter technology with Lasfit.
👉 Shop Now