Busch & Mueller have outdone their top-of-the-line Luxos headlights with the 100 lux IQ-X. For road use, this is the most powerful dynamo headlight we know of. (For bushwacking, the best are Klite from Australia and Exposure from Britain, both of which we stock. They're brighter than the IQ-X but their beam pattern is optimized for singletrack.)
The IQ-X's new optical system produces a smoother distribution of light on the road than any other headlight. How does 100 lux translate into lumens? From a cyclist's perspective, there is no translation. Lumens describes the amount of light produced, whereas lux describes illumination of a given area at a given distance. From a cyclist's perspective, lux is a much more meaningful indicator of a light's usefulness.
The housing is anodized aluminum and acts as the heat sink for the LED.
The IQ-X has a standing light (like all the B&M lights we carry), as well as daytime running lights. A senso automatically switches to either daytime or nighttime mode. It does not have a blinking mode, and that's good, because a blinking light this powerful would be extremely annoying, not to mention dangerous, to both motorized and nonmotorized oncoming traffic. Mounting: compatible with other Busch & Müller headlight mounts. The included mount will work on most bikes. As with other B&M headlights, it includes wiring for a tail light.
The sleek appearance of the IQ-X is also a nice step forward for Busch & Mueller.
We hope B&M will offer a USB port version of the IQ-X that, like the Luxos U, lets you charge phones, cameras, and other devices while you pedal.
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