Re: Powerdynamo wiring

b to the eff /
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> Jonathan R wrote:

> -------------------------------------------------------

> Re switches:

>

> This is the wiring instructions. They look to fit what little I know

> about parallel circuits but there is only the one wire coming out of the

> cdi so I don’t understand the positive/negative bit… I thought I would

> have to ground one on the switch

All voltage is relative. The powerdynamo unit uses the brown wire (frame "ground") as its reference.

You do not necessarily need a ground in your switch, depending on how you wire it up. The most common approach is to use the switch as a simple open or closed circuit (no ground required), and to use that to control the hot wire to the relevant light. It doesn't look like the switches you bought will allow for that, but it's hard to tell given the lack of information. You could use these, but it would make your wiring more complicated.

> The brake switches are the red button Maguras

>

> (https://www.treatland.tv/magura-brake-light-switch-RED-BUTTON-p/magura-brake-light-switch-blk.htm)

These are correct for what you have designed.

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