Product Review: SPIN UP F12W-PRO Bicycle USB Charger Dynamo from SunUp Eco (1)

SPIN UP F12W-PRO, a new front-mount model added to SunUp Eco’s line of bike dynamos released to the market in late 2019, is a high-power low-drag 3-phase bicycle dynamo that promises to keep your smartphones and other electronic gadgets charged while you are pedaling along.