Fenix BT20 – 2013 Mtbr Lights Shootout

Lights Lights Shootout

Fenix claimed 750 Lumens and they measured in at 771 Lumens in our integrating sphere. That’s a good start from this flashlight company that is debuting in the bike light market. They also did a bunch of development to get a beam pattern that has a broad beam for peripheral vision and a narrow beam for throw.

It seems to work well as the light is used more efficiently than just a big round beam pattern.

The light is available without batteries or a charger for $96. But we believe that will just cause confusion in the market as folks will buy that system and discover they need special 18650 lithium batteries and a charger.

Specifications:

  • Price: $145
  • Claimed Lumens: 750 Lumens
  • Measured Lumens: 771 Lumens
  • Measured MTBR Lux: 70 Lux
  • Light Head Weight:119 grams
  • Installed Weight: 358 grams
  • Run Time: 2 Hours
  • Category: High End

Strengths:

  • Conservative and honest with the lumen claims
  • Dual beam is a good piece of innovation
  • Cells are field replaceable for longer run time.
  • Good materials and construction
  • Light can be aimed left/right

Weaknesses:

  • Not particularly bright for the price
  • Battery case gets big because there is a hard case inside a soft case.

Mounting:

Mounting is done by tabbed rubber bands. But unlike mos lights with this mount, this one can be aimed left to right.

MTBR Light Meter Measurements: Compare all lights here.

This light measured 70 Lux on our ambient light measurement facility.

Integrating Sphere Measured Lumens: Compare all lights here.

771 measured Lumens. Claimed Lumens by the manufacturer is 750 Lumens.

Backyard Beam Pattern Photo: Compare all lights here.

We photographed the lights in the same location setting with the same camera settings. The photos were taken in the back yard that is approximately 25 yards long. These photos feature many objects and a distinct background to analyze detail and beam pattern.

Tunnel Beam Pattern Photo: Compare all lights here.

The location is useful since it has walls and a ceiling that can display a bike light beam pattern. The walls have a lot of graffiti on them and actually show detail when they are lit up by a light with a wide angle. Cones and targets are set up with the far target set up at 80 yards.

Fenix BT20 – 2013 Mtbr Lights Shootout Gallery
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Fenix BT20 Backyard Beam Pattern

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Fenix BT20 Tunnel Beam Pattern

Related Links
All Mtbr Lights Shootout Articles »
2013 Bike Lights Shootout »
2013 Backyard Beam Pattern Comparisons »
2013 Tunnel Beam Pattern Comparisons »
2013 Mtbr Lux measurements »
2013 Mtbr Lumen Tests »
2012 Bike Lights Shootout »
Mtbr Lights Reviews »
Mtbr Lights Forum »

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About the author: Francis Cebedo

The founder of mtbr and roadbikereview, Francis Cebedo believes that every cyclist has a lot to teach and a lot to learn. "Our websites are communal hubs for sharing cycling experiences, trading adventure stories, and passing along product information and opinions." Francis' favorite bike is the last bike he rode, whether it's a dirt jumper, singlespeed, trail bike, lugged commuter or ultralight carbon road steed. Indeed, Francis loves cycling in all its forms and is happiest when infecting others with that same passion. Francis also believes that IPA will save America.


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