Exposure Diablo bike light Pro Review

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Exposure Diablo – $249.00

Light Price Claimed Lumens Runtime Measure Lux Light head weight Battery Weight Installed Weight Lux per gram Lux per dollar
$249 700 1:00 hr 34 Lux 100.5 g 0 g 120g .28 Lux .14 Lux

Light Meter charts and comparison table available here.

Light Head close ups:

Light Meter Measurements:

Our light measurement for the Diablo measured 34 Lux on our test room. The Toro was a little brighter at 36 Lux and we credit the Toro’s bigger battery for that. Both lights are extremely bright and it is possible to ride at high speed with one light alone. This is a remarkable feat with a 100 gram light.


  • No wires
  • extremely small with 100 gram weight.
  • very innovative helmet and handlebar mounts are both included
  • machining and quality are first rate
  • carrying case is just right
  • flexibility with piggyback battery option and many other options accepted by the Smart Port.
  • the light is very handy as a flashlight around the trail and around the house


  • 1 hour run time at full power is limited

Bottom Line:

If you want the ultimate hassle-free and bike light, the Exposure Diablo is a great option. It is only hampered by  the short run time but the optional piggyback battery addresses that issue with an extra hour of run time.

Beam Pattern Photos:

Exposure Diablo

Beam Pattern rollover and side by side comparison page available here.

Value Rating:

4 out of 5 Stars

Overall Rating:

4.5 out of 5 Stars

Read or write reviews:


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  • Anonymous says:

    One hour run time? Doesn’t the piggyback battery defeat the purpose of these lights biggest advantages? Sorry, I’m perfectly satisfied with mine.

  • Anonymous says:

    The review is titled “Exposure Diablo” but Francois also talks about and shows the ‘Toro”. It has a 3 hour run time and brighter output but I don’t see it listed as one of the lights under review. What’s up with that?

  • Anonymous says:

    The Toro will be in another review page and it will share the video. That way we can show all the detailed pics and specs of the Toro.

  • Anonymous says:

    Just run the light in the middle setting (3hr) at the start of your ride. It’s still brighter than the brightest setting on the Joystick. When you have 30-45 min left in your ride rev it up to Max and let it burn. It will kick down when it needs to, to a lower output. I may try the add-on battery. Probably the tiniest compact add-on battery you could run.

  • Anonymous says:

    Great job as always with these very thorough lights reviews – if you crave more burn time, the Exposure Diablo Diablo with an add on piggy back battery is so light you will still not notice it’s on your helmet and you it keeps it self contained so no need to run a separate pack in your camelbak.

    Gives you officially and approximately 2 hrs of burn time, but in our experience 2.5.

    Let us know if you have any questions about any of the Exposure Lights products.

  • Marcus says:

    I’ve had my Diablo for 2 months now and really like it.
    – Compact design, very light
    – 3 light settings plus flash mode
    – small piggy back battery
    – precision engineered, everything is well thought out from the charger unit (includes LED) to the color changes on the units on/off button. as the battery runs down the on/off switch changes color from green to red
    – Max power setting emits a very bright light, so bright that pedestrians and cars can be upset by the beam

    I purchased an extra bracket to move the light between my mtb and road bike. Used it on my road bike this morning during sprint training session and didn’t even notice it.

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