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A Danish company has developed a very innovative handlebar, they embedded the lights on the bicycle handlebar itself. Forget guide their lights on the helmet or handlebar fastened with elastics with LED Innos just such concerns. The lights are water proof and theft proof, unless you disassemble the handlebar or steal bike . With a simple design and insane, works with rechargeable batteries that can be replaced in a couple of minutes. There currently is developing the same system but for the spike with integrated LEDs, so just concerns for and take the best angle and direct.
Source link: http://www.bttgps.com/innos-led/