I made a homemade water wheel and I’m generating less than .5 volts?

I have made my profile picture the model I made. I’m using a 3:1 gearing ratio to turn up the rpms on the motor I’m using as a generator. I want it to power a 1.8 volt micro led and I have no idea why it’s so ineffective. I bought 20$ rc car motor and it barley effects the output compared to a very small motor... show more I have made my profile picture the model I made. I’m using a 3:1 gearing ratio to turn up the rpms on the motor I’m using as a generator. I want it to power a 1.8 volt micro led and I have no idea why it’s so ineffective. I bought 20$ rc car motor and it barley effects the output compared to a very small motor that has about 15 times less power
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