Headlight Bulbs
Track Order
My Vehicles
Contact Us
Set Up Your Vehicle
Get the exact fit for your vehicle
Currently Shopping For:
{{currentVehicle.year}} {{currentVehicle.make}} {{currentVehicle.model}} {{currentVehicle.submodel}} {{currentVehicle.engine}} {{currentVehicle.trim}}
Edit
No Vehicle Selected
Shop Without Vehicle
Manage Vehicles
Non-selected Vehicle Models:
{{item.year}} {{item.make}} {{item.model}} {{item.submodel}} {{item.engine}} {{item.trim}}
Edit
Set Up Your Vehicle
(Get the exact fit for your vehicle)
|
(Get the exact fit for your vehicle)
Year *
Roll over image to zoom in
Popular
SEALIGHT® SLJ3 7443/7440/T20/W21W LED Brake Tail Light Rear Turn Signal Light Bulbs 30W 3200LM Red 2PCS
SKU:
Write A Review
Happy Halloween
0
0
Hrs
:
0
0
Mins
:
0
0
Secs
Enter ZIP code to view delivery estimate.
SEALIGHT® SLJ3 7443/7440/T20/W21W LED Brake Tail Light Rear Turn Signal Light Bulbs 30W 3200LM Red 2PCS
Add To Wish List
- %
SAVE $
$39.99
$49.99
Product Specifications
| Brand | SEALIGHT |
|---|---|
| Light Source Type | LED |
| Application | Brake Light/Tail Light/Rear Turn Signal Light/Rear Fog Light |
| Item model number | 7443/7440/T20/W21W |
| Chips Quantity/Bulb | 36PCS 3030 SMD Chips |
| Color | Red |
| Lumens | 3200LM |
| Wattage | 30W/Pair |
| Voltage | 12V |
| Waterproof Grade | IP68 Waterproof and Dustproof |
| Lifespan | 50000 Hours |
-
Free Shipping on All U.S. OrdersFree shipping on all orders to the contiguous U.S. Most orders ship within 1–2 business days and arrive in 2–5 business days.
-
90-Day Free ReturnsNot satisfied? Return your unused, uninstalled item within 90 days for a full refund. Quality issues? We cover the return shipping.
-
1-Year WarrantySEALIGHT products are covered by a 1-year warranty from the date of purchase. If you experience a quality-related issue, contact us and we'll make it right.
-
Vehicle-Specific Fit, GuaranteedAll parts are guaranteed to fit your vehicle. Wrong part? Contact us — we'll verify your fitment and find the right solution.
Highlights
- 3200LM Red Output: SEALIGHT SLJ3 7443/7440 LED brake light bulbs deliver 3,200LM at 30W per pair. The red light helps make brake and tail signals more noticeable.
- Multi-Function Fitment: These 7443/7440/T20/W21W LED bulbs can serve as brake, tail, or rear turn signal lights when the bulb size matches the socket.
- Anti-Hyperflash Driver: The built-in J3 driver and resistor help reduce hyperflash, so many compatible setups may not need a separate load resistor.
- Fan-Cooled Design: Each bulb uses 36 3030 SMD chips. The 6063 aluminum housing, hollow base, 15,000RPM fan, and intelligent temperature control help manage heat.
- Standard and CK Sockets: Designed for compatible standard and CK-style sockets, including 7443 applications. The plug-and-play design makes replacement straightforward.
This Part Fits These Vehicles
Product Description
SEALIGHT SLJ3 Series Red 7443 7440 LED Brake/Tail Lights
Be Seen Clearly. Signal with Confidence.
Why LED Brake/Tail Lights Matter?
Standard halogen tail and brake light bulbs often appear dim and lack clarity, making your vehicle less noticeable from behind — especially in rain, fog, and low-light conditions. Upgrading to high-performance LED bulbs delivers
brighter, more saturated red light with quicker response
, helping other drivers
see your vehicle’s signals sooner and react faster
. With clearer illumination at the rear, you improve visibility, enhance safety, and drive with confidence wherever the road takes you.
LED vs Halogen: The Difference You Can See Instantly
Why Choose Sealight SLJ3 Series LED Bulbs?
Anti Hyper Flash
The Sealight J3 Pro Max series is equipped with the latest J3 intelligent driver and built-in resistor, which can solve the super flash problem of 99% of vehicles. No need to purchase extra load resistors and crack circuits. Our engineers spent two years developing flagship signal lights based on customer feedback.
The Sealight J3 Pro Max series is equipped with the latest J3 intelligent driver and built-in resistor, which can solve the super flash problem of 99% of vehicles. No need to purchase extra load resistors and crack circuits. Our engineers spent two years developing flagship signal lights based on customer feedback.
Engineered Through Three Generations of Innovation
![]()
![]()
The Sealight J3 represents the pinnacle of three generations of innovation. From GEN.1 to GEN.3, each upgrade brings brighter illumination and more advanced SMD chip technology. The latest J3 features 36 cutting-edge SMD chips, delivering up to 1500% brightness, ensuring exceptional visibility and safety in any driving condition. This is not just a performance upgrade—it’s Sealight’s commitment to innovation, quality, and ultimate driving confidence.
Built for All Weather. Reliable in Any Condition.
The J3 Pro Max series products are made of 6063 aviation grade aluminum as a whole. The base adopts a hollow design and is equipped with a 15000 rpm turbine fan on the top, with an intelligent temperature control system. The multi-layer temperature treatment design keeps the light bulb at a reasonable temperature and extends its lifespan. Powered by intelligent J3 drivers and precision engineering, this latest generation is built to perform reliably in demanding conditions, mile after mile.
The J3 Pro Max series products are made of 6063 aviation grade aluminum as a whole. The base adopts a hollow design and is equipped with a 15000 rpm turbine fan on the top, with an intelligent temperature control system. The multi-layer temperature treatment design keeps the light bulb at a reasonable temperature and extends its lifespan. Powered by intelligent J3 drivers and precision engineering, this latest generation is built to perform reliably in demanding conditions, mile after mile.
Installation Instruction
Compatible with 992, 7440, 7441, 7443, 7442, 7444, W21W, WY21W, 7440NA, 7440NAK, 7444NA,7444NAK, 7443LL, T20.etc. Please verify your vehicle's bulb size before purchase. Installation Position: Brake Light/Tail Light/3rd Brake Light/Turn Signal Light/Side Marker Light.
If you have any questions about installation or fitment, feel free to reach out to our customer support team — we’re always happy to help.
Compatible with 992, 7440, 7441, 7443, 7442, 7444, W21W, WY21W, 7440NA, 7440NAK, 7444NA,7444NAK, 7443LL, T20.etc. Please verify your vehicle's bulb size before purchase. Installation Position: Brake Light/Tail Light/3rd Brake Light/Turn Signal Light/Side Marker Light.
If you have any questions about installation or fitment, feel free to reach out to our customer support team — we’re always happy to help.
Pay Once, Save for Years. Stop the Replacement Cycle.
Why keep replacing halogen bulbs? The math is simple. Standard halogens offer a short lifespan, leading to frequent replacements over time. Sealight SLJ3 LED bulbs are built to last significantly longer, helping reduce replacement costs year after year. Upgrade once and enjoy reliable lighting for the long run.
Confidence Backed by Real Drivers
Thousands of drivers choose Sealight not just for brighter lighting, but for the confidence that comes with reliable service and real-world results. From hassle-free returns and fast local shipping to genuine feedback from drivers who’ve seen the difference on the road, this is trust built through experience — and shared with friends and family.
FAQs
Q1. Can this red pair handle the turn signal too?
A1. Yes, in a combined red lamp it covers brake, tail and rear turn; separate amber turn lamps need an amber bulb, so check the lens colour before ordering.
Q2. Does it need a socket with two live contacts?
A2. Yes. The pair uses both levels, so a 7440 holder with one live contact leaves one function dark; check the socket before fitting.
Q3. Will it hyper flash?
A3. Usually not, because the 30W pair is close to what the flasher expects; if the rate still runs fast, support ships a free decoder for the turn circuit.
Q4. Is 3,200LM too much for a tail lamp?
A4. No. The tail runs on the dim level, so 3,200LM at the bright level keeps the brake clear of the tail without washing the lens out.
Q5. Will the lens change shade?
A5. No. Red stays red behind a red lens; what changes is brightness, since 3,200LM per pair is well above the filament it replaces.
Reviews
SEALIGHT® SLJ3 7443/7440/T20/W21W LED Brake Tail Light Rear Turn Signal Light Bulbs 30W 3200LM Red 2PCS
Below are the real customer reviews from all online marketplaces. Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristic.
YOU MIGHT ALSO NEED
Popular
-20%
Popular
-20%
SEALIGHT® SLJ3 7443/7440/T20/W21W LED Brake Tail Light Rear Turn Signal Light Bulbs 30W 3200LM Red 2PCS
Image 1 of
Enter your email address below to be notified when items are back in stock.