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Exposure Diablo Mk5 Light

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Item # EXP000N

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Item # EXP000N


1100 lumens of light, a hair over 100g, and it's self-contained. Heavy bragging rights there, for Exposure's Diablo Mk5 Light and reasons for competitive 24hr racers and KOM terrorists alike to consider this torch.

If you've ever snagged a power cord and had a singletrack tunnel go dark or would never consider spoiling a beautiful frame by running cables all over it, then you know the appeal of cable-free lights. The Diablo Mk5's 3100mAh Lithium-ion battery is enclosed within aerospace grade, exquisitely CNC'd aluminum body. That extensive machining, however, isn't just to look cool. It's actually designed to help heat transfer -- to physically cool the light. Packing three Cree XPG white LED's, the Diablo Mk4 can generate some heat. One way it's managed is through the weather-tight body, the other way it's managed is with Exposure's patented Intelligent Thermal Management (ITM).

If the internal temperature gets too high, ITM kicks in and automatically drops the power level down to the next lowest setting. It will remain at the lower setting until the temperature inside the housing returns within normal operating range. This, and the weatherproof housing, ensures the light's battery and LED bulbs are safe from moisture, muck, and heat for a long life span.

A defining feature found here on the Diablo Mk5 is Exposure's Smart Port Technology Plus. Essentially, it's a cylindrical plug on the back of the lamp unit that allows you to insert the smart charger. But, it also enables you to plug in accessories like a red LED taillight and back-up batteries, or to even charge other USB-powered devices. It will automatically recognize each accessory and configure the system to take a charge or power accessory lights. Best of all, a remote switch is available for quick light control.

A new feature found on the Diablo Mk5 is Exposure's Optimum Mode Selector. OMS offers eight pre-programmed settings to provide the optimal lighting for ride conditions. After all, the requirements needed for a high-paced trail ride are quite different than 24hr race, or a week of commuting -- and OMS lets you tune the light for any of those conditions.

For example; in the first OMS setting, the Diablo Mk5 will push 1100 Lumens for 1hr in high, medium gets you 3hrs at 540 Lumens, and low nets 280 Lumens at 6 hours -- great for standard trail riding or commuting. Now, let's say you're going on a moonlit epic, something along the lines of six hours pedaling in the dark. You're not going to need full power to light the road or trail because you're not alerting cars or traveling at race-pace.

For that situation you can select the third OMS mode where the Race Mk5 will kick out a sufficient 540 Lumens for 3hrs in high, 210 Lumens for 10hrs in medium, and 100 Lumens for 24hrs. That'd be plenty of light to safely cut through the darkness and make it back to camp.

The OMS modes are selected using the power button located on the back of the unit. The new info display resides under a clear silicone covering with 3 color mode LED's that double as the OMS display indicator and a fuel gauge. The Diablo Mk5 mounts to your handlebar via a small, but sturdy mount.

The Exposure Diablo Mk5 has a two year warranty against defects in materials and workmanship.

Tech Specs

Power Source:
3100mAh Lithium Ion battery
Batteries Included:
Battery Location:
Burn Time:
1 - 24 hours
Recommended Use:

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Love this light!

  • Familiarity: I've used it once or twice and have initial impressions

Having recently gotten this light, I've used it only once thus far. That said, I'm excited to get out and use it again. Yesterday I rode with it at dusk. I had it set on the blink setting and was amazed at how it illuminated the reflective material on telephone poles that were 4-5 poles ahead of me. This light is a nice size and weight. I've already done a test run with it on my helmet and while I notice it, it's not too heavy.

how many time for charging? does this...

how many time for charging? does this include an USB port charger?

Haven't tested the charging time yet but, wanted to let you know that it does include a USB port charger as well as the wall charger attachment.

Does this include the 2 mounts shown in...

Does this include the 2 mounts shown in the picture: the helmet mount and the QR handlebar mount?

Yes it includes both helmet and handlebar mounts.

Great light!

  • Familiarity: I've used it several times

I'm a big fan of the Diablo. I've primarily used it as a helmet mounted light for mountain night rides paired with a larger lumen bar mounted light. The helmet mount is easy to set up and adjust the beam direction while wearing the helmet. It's very light weight, and is nice not having a cable going to a battery in my pack. Exposure offer a "piggy back" battery that can extend the use time.

The lights function is very easy to use, a double tap on the rear button turns the light on, one push cycles through the different brightness levels, and then holding the button turns the light off. The lowest light setting provides more than enough light for me when climbing or riding flat sections of trail, and I bump up to the brightest for descents. My night ride are typically 1-2 hours, and I have yet to have the battery run out on a ride. It's also very handy to use as a normal flashlight around the house.