Exposure Diablo Bike Light Review

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Last Year’s Video on the Diablo

Light Price Claimed Lux Measured Lux Run time Light head weight Battery Weight Installed Weight
Exposure Diablo $250 900 63 1:10 102 0 110

Light Meter charts and comparison table available here.

Light Meter Measurements:

This light measured an impressive 63 lux on our ambient light measurement facility. This is almost twice as bright as last year’s Diablo at 34 lux. It is such a huge improvement that it has really doubled the useability of this light. It can now be used by itself on the helmet or the bar.  And even at mid power, it still measures at 28 lux and has a run time of 3:20 hours.

For comparison, the Magicshine MJ-808 claimed at 900 lumens measures 37 lux on our test bed.


  • Almost twice as bright as last year at the same weight and price
  • now features USB charging so you can charge it with your computer or any USB output
  • 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


  • 1:10 hour run time at full power is limited

Bottom Line:

With the light output nearly doubling from last year, this is now a great light.  And it is completely useable in descents at mid power and it lasts 3:20 on one charge. 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:



Beam Pattern and side by side comparison page available here.


Value Rating:

5 out of 5 Stars



Overall Rating:

5 out of 5 Stars




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  • Tu D says:

    Great review. After reading your review, I had to get myself one. Light weight and the brightness is out-of-this-world. I cant believe this little device produces so much light.

  • woodyak says:

    Thanks for the review. I picked one up about a month ago and it’s a fantastic light. Very bright with the perfect amount of spread for a helmet light. I picked up the piggy battery and mount that on my helmet I get 2:45 with it high. I’m very stoked on this light.

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