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First Look: Exposure’s 1,100 lumen, programmable Diablo Mk. 4

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Every summer, UK lightsmiths Exposure seem to revamp their lighting line for the coming dark months.  2013 is no exception: not only are outputs boosted across the line, but the ability to program most lights has been added and they’ve introduced accelerometer- and thermostat-enabled Reflex technology.  Do these guys ever take a break?

The update to the fantastic Diablo Mk. 3 is… the Diablo Mk. 4.  The new Diablo is up 10% to 1,100 lumens maximum and can now be programmed to cycle through one of eight sets of 2-3 settings depending on lighting and battery life needs.  Hit the jump for the skinny on this little light that packs a big punch.

Still using Exposure’s versatile ball and socket helmet mount, the Diablo can also mount to the bars with a slick but minimal mounting bracket ($25).  The included USB charger isn’t the fastest out there, but will allow for easy charging at work or at events from increasingly common car USB ports.

Despite my fears of overly-complicated programming, the single-button interface is easy to use (and a quick start card is provided in the nice padded carrying case).  Worried about the 1hr run time on high (keep in mind that this is a 108g light)?  Choose a program that tops out at a lower setting.  Going full-tilt for a short ride or have an external battery?  Choose a program without a low setting.  The Optimized Mode Selector isn’t something that everyone will use- but easy and useful enough that everyone could.

With a good balance between breadth and punch, the Diablo makes for an excellent trail light.  During the week, the flash mode and helmet mounting makes it easy to get drivers’ attention while commuting and doesn’t need to be removed from the bike during the day.  Even though it goes against Exposure’s ‘no cables’ ethos, the optional 3-cell external battery quadruples the light’s runtimes- a racer’s friend that yields 8hr on medium for $130.

At $300, the Diablo is positioned directly against Light & Motion’s Taz 1200– both are self-contained, 1st-world made lights from reputable manufacturers with similar outputs.  Where the Exposure sets itself apart from competitors is with its more versatile form factor, light weight, expandability, and programmability.  If past experience is any indicator, the Mk. 4 Diablo will be extremely durable as well.  Available in the US with US-specific chargers through local bike shops or distributor Ibex Sports.


ibexsports.com (USA)



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11 years ago

With great candlepower comes great responsibility.

Please don’t use helmet lights in the city. when people look over, presumably to wave, they blind me.

Please don’t run bright lights on strobe in the city. Yes, you’re clearly visible—like the jerk who leaves his high beams on.

And please don’t draft me with your bright lights on strobe. I will cut you.

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