A T20 / W21W / 7440 single-filament Canbus adapter with a built-in 50W 6Ω load resistor designed to eliminate bulb-out errors and rapid flashing when upgrading to LED or Xenon HID bulbs.
✅ What Problems It Fixes
Hyper flashing (rapid blinkers)
OBC / CAN Bus bulb-out warning messages
DRL error codes
Flickering or bulb rejection
Compatible for:
Turn signal / side indicator
Daytime Running Light (DRL)
Brake light
Tail light
Reverse light
Rear fog light
Any T20 (7440 / W21W / 582) single-filament socket
⚙️ How It Works
Modern vehicles with CAN Bus / OBC systems monitor bulb resistance.
LED bulbs draw much less power than halogen bulbs, which causes:
Error messages
Rapid blinking
The 50W 6Ω resistor simulates the load of a traditional halogen bulb, tricking the vehicle into thinking the original bulb is still installed.
🔌 Installation
Plug & Play
No cutting or modifying factory wiring
Pre-wired harness
Works on DC 12V systems
📦 Specifications
Socket Type: T20 / W21W / 7440 / 582
Filament Type: Single filament
Resistance: 6 Ohm
Power Rating: 50W
Voltage: 12V DC
2x T20 582 7440 W21W LED Load Resistor Wiring Harness Canbus No Error Canceller
Do not mount on plastic or anything with low heat resistance as the LED load resistor will be very hot and are designed to work in high temperatures.
