TOPCITY develop the world’s first W5W t10 5w canbus led bulb,we can solve 99% canbus problem

With the plug & play solution and the universal polarity they can be installed quickly and easily and regardless of polarity. You can now replace your vehicle lamps with topcity´s revolutionary LED retrofit lamps and experience trend-setting brightness. Additionally, topcity offers a dedicated guarantee on all topcity led lamps

In the very unlikely event of a failure message on your vehicle’s dashboard, TOPCITY has also developed a solution for the  W5W – the LEDriving Canbus Control Unit LED T127

We do not need w5w led canceller and led resistor when you replace the w5w halgoen bulb.

The W5W halogen is 5w,topcity T127 w5w led bulb is 5w,so we solve the canbus problem.

(W5W Halogen Bulb=5W,

TOPCITY W5W canbus led=5W,

So 5W=5W=Canbus free)

We special use for vw,fiat,bmw,benz…..also can suit for honda,toyota,hyundai…