The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

Cycling after dark has become safer and more stylish than ever, thanks to the evolution of modern LED bike light technology.

For the top button, I programmed the single click to turn the lights on, the double click to set the brightness to 100%, and the long press to change all the lights to white. The bottom button has the ...