Exercise bike.
Power comes from your riding.
Bright LED with dual lighting.
5 LEDs to conserve battery lift;
9 LEDs to light for max power;
Dynamo power station for multifunction.
AC output with optional 110V/230V;
DC output with optional 3V/4.5V/6V/9V/12V;
Optional USB/AC/DC jack for most electric products;
Charge most rechargeable product.
Power up most of electric appliance.
Battery capacity indicator.