Alla Lighting Upgraded T20 7440 7443 LED Strobe Brake Lights User Manual

1. Introduction

Thank you for choosing Alla Lighting Upgraded T20 7440 7443 LED Strobe Brake Lights. These high-performance LED bulbs are designed to enhance vehicle safety by providing superior brightness and a distinctive strobe function, ensuring increased visibility for drivers behind you. This manual provides essential information for proper installation, operation, and maintenance of your new LED brake lights.

2. Key Features

• Strobe Function: Bulbs flash 3 times on-and-off upon brake application, then remain solid, providing a legal and effective warning to following traffic.
• High Brightness: Equipped with 39 pieces of high-quality, high-power 2835 LED chips for 360° full angle illumination and a projector lens, delivering up to 2000 lumens.
• Advanced Driver: Features a newly upgraded built-in USA-made smart IC driver for optimal light performance, stable current, and extended lifespan.
• Enhanced Durability: Constructed with a #6063 aluminum heatsink for efficient heat dissipation and a flame-retardant socket connector.
• Compatibility: Designed to be compatible with both standard type and CK/SRCK type sockets.

Image: Illustration of the strobe flash function of the LED brake light, showing the bulb flashing on and off.

Image: An exploded view diagram showing the high-quality projector lens, 3x2835 high power LEDs on the upper board, 36x2835 high power LEDs around the sides, #6063 aluminum heatsink, and flame-retardant socket connector.

3. Compatibility

These LED bulbs are universally designed to fit T20 wedge 7440 single filament and 7443 dual filament W3x16Q bases. They are ideal replacements for rear 7440, 7443 brake stop lights, and center high-mount stop (3rd brake) lights.

Cross-reference numbers include: 7440, 7441, 7443, 7443LL, W21/5W, 7443/26201, 78660, 78661, 17919, 7515, HIB7443WM, W21W, 7440/26200, 17632, 7504, 7440LL, 7443-SRCK, 7443-CK, and others.

To ensure proper fitment for your vehicle, please verify your OEM bulb's part number. You can also consult your vehicle's owner's manual or use online bulb size guides.

Image: An informational graphic detailing three reliable ways to determine the correct bulb size for your vehicle.

4. Installation

Installation of Alla Lighting LED Strobe Brake Lights is generally straightforward, similar to replacing standard incandescent bulbs. Always ensure your vehicle is turned off and the engine is cool before beginning any work.

General Installation Steps:

1. Access the Bulb: Locate the brake light assembly on your vehicle. This typically involves opening the trunk or tailgate and removing a panel to access the rear of the light housing. Consult your vehicle's owner's manual for specific instructions on accessing the brake light bulbs.
2. Remove Old Bulb: Twist the bulb socket counter-clockwise to unlock it from the housing. Carefully pull the old bulb straight out from the socket.
3. Insert New LED Bulb: Insert the Alla Lighting LED bulb into the socket. Ensure it is fully seated.
4. Test Functionality: Before reassembling, turn on your vehicle and test the brake lights to ensure they function correctly, including the strobe feature.
5. Secure Assembly: Once confirmed working, twist the bulb socket clockwise to lock it back into the light housing. Reattach any panels removed during the process.

Important Note:

Due to the lower power draw of LED bulbs compared to stock incandescent lamps, some vehicles may require extra load resistors to prevent hyper-flashing (rapid blinking) or error codes on the dashboard. If you experience these issues, consider installing appropriate LED load resistors (sold separately).

5. Operation

The Alla Lighting LED Strobe Brake Lights operate automatically when the brake pedal is pressed. Upon activation, the bulbs will flash 3 times rapidly (on-and-off) and then transition to a solid, continuous light. This unique strobe pattern is designed to quickly capture the attention of drivers behind you, significantly reducing the risk of rear-end collisions.

Image: Side-by-side comparison photos demonstrating the significantly brighter illumination provided by the Alla Lighting LED bulb compared to a traditional stock incandescent lamp.

6. Maintenance

Alla Lighting LED bulbs are designed for long-term, maintenance-free operation. Unlike traditional incandescent bulbs, they do not have filaments that can burn out. To ensure optimal performance and longevity:

• Periodically inspect the bulbs and their connections for any signs of damage or corrosion.
• Keep the light assembly clean from dirt and debris, which can obstruct light output.
• Avoid using harsh chemicals or abrasive materials when cleaning the light housing.

7. Troubleshooting

Common Issues and Solutions:

• Hyper-flashing or Fast Blinking: This occurs because LED bulbs draw less current than incandescent bulbs, causing the vehicle's flasher relay to interpret a burnt-out bulb.
• Solution: Install a compatible LED load resistor for each affected bulb.
• Dashboard Error Codes (CANBUS issues): Similar to hyper-flashing, the vehicle's computer may detect a low current draw and display a bulb-out warning.
• Solution: Install a compatible LED load resistor or a CANBUS decoder.
• Bulb Not Lighting Up:
• Solution: Ensure the bulb is correctly seated in the socket and the socket is securely connected to the vehicle's wiring. Check for any loose connections or blown fuses in the vehicle's electrical system.

8. Specifications

9. Warranty and Support

Alla Lighting provides a Fully One Year Warranty for these LED strobe brake lights. For any questions, technical assistance, or warranty claims, please contact Alla Lighting customer support. As a USA-located company, Alla Lighting is committed to providing professional technical support and excellent customer service.