WilliamT
Active Member
I purchased a brake light that has 3 wires; red, yellow, black. To test it, I used a 9v battery.
When I run current through the red and black, I get the usual light when riding.
![red and black.jpg red and black.jpg](https://forums.electricbikereview.com/data/attachments/55/55349-2ff49e4532acfe93a5a9c2377033ae61.jpg)
When using yellow and black, the light is brighter. I'm assuming that's when you applied the brake.
![yellow and black.jpg yellow and black.jpg](https://forums.electricbikereview.com/data/attachments/55/55350-b5133bb4836ca8e939f96f6f84e67f05.jpg)
The red/black combo is simple to setup. I'll just tie it to my front lights. The light can handle between 6v-80v.
Is there a way to connect the light so the yellow wire switches over from the red when I apply the brake lever?
When I run current through the red and black, I get the usual light when riding.
![red and black.jpg red and black.jpg](https://forums.electricbikereview.com/data/attachments/55/55349-2ff49e4532acfe93a5a9c2377033ae61.jpg)
When using yellow and black, the light is brighter. I'm assuming that's when you applied the brake.
![yellow and black.jpg yellow and black.jpg](https://forums.electricbikereview.com/data/attachments/55/55350-b5133bb4836ca8e939f96f6f84e67f05.jpg)
The red/black combo is simple to setup. I'll just tie it to my front lights. The light can handle between 6v-80v.
Is there a way to connect the light so the yellow wire switches over from the red when I apply the brake lever?