![Lamp 2 Pole (T20) 12V Amber [Tungsram] (Made in Japan) (7443NA B1)](/web/image/product.product/12803/image_1024/%5BL479%5D%20Lamp%202%20Pole%20%28T20%29%2012V%20Amber%20%5BTungsram%5D%20%28Made%20in%20Japan%29%20%287443NA%20B1%29?unique=0e4551d)
Lamp 2 Pole (T20) 12V Amber [Tungsram] (Made in Japan) (7443NA B1)
DUAL FUNCTION SIGNALING: TUNGSRAM (GE) T20 Lamp 7443NA (Amber) – OE Quality Dual Filament.
END TAIL/BRAKE LIGHT FAILURE. RESTORE DUAL CIRCUIT FUNCTION. GET THE PRECISION AMBER T20 BULB FOR YOUR ASIAN/EUROPEAN VEHICLE.
The 7443NA (also known as W21/5W Amber or T20 Dual Filament) is a crucial bulb used for combined signaling functions in many modern vehicles, particularly those from Toyota, Honda, Nissan, Chevrolet, and some European models. The dual filament design means one bulb handles two functions:
Dim Filament (5W): Tail/Parking Light, or Daytime Running Light (DRL).1
Bright Filament (21W): Brake Light or Turn Signal (Flasher).
The TUNGSRAM (GE) 7443NA Amber Lamp (Code: 7443NA B1) is an Original Equipment (OE) quality replacement.2 As Tungsram is now part of the General Electric (GE) lighting group, its bulbs are produced to high ECE standards. This bulb guarantees the necessary dual-circuit function, high light output, and resistance to thermal stress, ensuring safety and compliance.
THE CORE SPECS: Dual Filament Wedge Base (W3x16q)
This bulb is engineered for precise dimensional fit and reliable dual-circuit electrical function.
| Specification | Detail | Direct Benefit to the Egyptian Driver |
| Tungsram Ref. | 7443NA (OE Ref: W21/5W Amber) | Dual Function. Handles both dim (running) and bright (signal/brake) functions in a single unit. |
| Bulb Type | Halogen T20 (Plastic Wedge Base) | Single Point Source. T20 plastic wedge base (W3x16q) for easy, key-way protected fitment. |
| Voltage/Wattage | 12V / 21W & 5W | OE Power Match. Ensures the correct power draw for both the dim and bright circuits, preventing electrical faults. |
| Color | Amber (NA - Natural Amber) | Signaling Safety. The amber glass ensures the correct color for turn signals, even behind a clear lens. |
| Origin | Made in Japan (TUNGSRAM/OEM Supplier) | Quality Assurance. High quality manufacturing standard, ensuring filament accuracy and longevity. |
| Failure Mode | One Filament Failed | Common Repair. When only one circuit (e.g., the bright filament) fails, the bulb must be replaced. |
WHY TUNGSRAM 7443NA IS YOUR CRITICAL PURCHASE NOW
You are choosing reliability and guaranteed visibility for safety-critical communication on the road.
Guarantees Dual Safety Functions: A single failed filament can mean the loss of your brake light or turn signal. This OE-quality replacement ensures both critical safety functions work reliably.3
Prevents Hyper-Flashing: Replacing the bulb with the correct 21W wattage is essential to ensure the flasher unit (on the turn signal circuit) operates at the correct flash rate, avoiding the dangerous rapid-flashing (hyper-flash) caused by low-wattage bulbs.
Heat & Vibration Resistance: Manufactured to high standards, the filaments are designed to withstand the thermal cycling and road vibration common in the local environment, offering reliable service life.4
OE-Spec Fitment: The precise T20 wedge base ensures the bulb seats correctly and prevents loosening due to vibration, which is a common cause of premature failure in signal bulbs.
SECURE YOUR LIGHTING SAFETY.
Always replace bulbs in pairs for symmetrical illumination and color matching. Order two units.
Crucial Check: Verify your vehicle requires the dual-filament 7443NA / W21/5W Amber bulb with the T20 plastic wedge base.
Click "ADD TO CART" now and secure the TUNGSRAM 7443NA Lamp—the essential OE-quality component for safe and reliable dual-circuit signaling.
| Brand: Tungsram |