Originally Posted by
zacster
What I want to do is to take my DVM with me and just measure what the dynamo puts out unloaded, and also what the light draws. There is the connector for the rear light that I could tap into, I think it is in parallel with the main light? Or is it in series? Must be parallel because it is currently open.
If it were in series and open, it would be an open switch.
6V 3W split between the front and rear light works out to around 400mA (Front) and 100mA (rear) give or take depending upon the specific loads/lights.
To measure the current draw of you rear light, you would connect your DVM in series with it while it is on. But, why bother?