F12W-PRO Bicycle USB dynamo is the first bicycle dynamo with Intelligent Power Management System(IPMS). It controls power output according to your riding speed and provides touring devices with a stable electric current at 1000mA, even when you briefly stop for a traffic light. You can feel free to charge your iPhone or GoPro directly.

Location: Front

Output: DC6V12W

Weight of dynamo: 370g

Material: Out case: Aluminum

USB charger: FRP(Fiber Reinforced Plastic),Aluminum

Working temp.: -25°C~65°C

Speed limit: 70km/hr

IP rating: IPX4

Patent: Main Countries

Warranty period: 1 year

Charging time is one time faster than hub dynamo

F12W-PRO USB charger provides 5W output, compare to hub dynamo with USB chager on the market only provides 2.5W output

USB charger performance

・Below 6 km/h : No power.

・6 ~ 15 km/h : Output 5W(5V1000mA) from cache battery.

・Over 15 km/h : Output 5W(5V1000mA) directly.

*Cache battery will continue charge for 1 minute when you briefly stop.

Weight : 125g

Spoke dynamo advantage

1. Increased rotating speed brings better power generation efficiency.(Regular hub dynamo and wheel speed ratio is 1:1, so the speed of the generator has a certain upper limit)

2. Can be installed on most wheels.

3. No need to spend money to remake the wheel set.

Dynamo performance

Maximum power output 6V12W at 18 km/h.

(Include USB charger 5W, headlight 3W, cache battery 1.6W and 20% loss in the charging circuitry)

Weight : 370g

What is included:

1.F12W-PRO Dynamo

2.F12W-PRO USB charger

3.Mounting component

4.Parts package

5.F12W-PRO installation instruction

6.1 year warranty card