Problem: How to setup 2 stage brake light

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

When using yellow and black, the light is brighter. I'm assuming that's when you applied the brake.

yellow and black.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?
 
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