The Lezyne Deca Drive was one of the best lights from Lezyne last year, with a $160 price tag and a light head with three LEDs and a wide beam pattern. This year, the Deca Drive is unchanged, as its sibling the Mega Drive is upgraded to three LEDs as well now with an output of 1400 Lumens.
The mount of the Deca Drive is sturdy with an upgraded robust mount. This after all is a 265 gram light and it packs a bit of inertia on those big hits which can knock the light out of place.
This has the 'infinite' battery which is field replaceable, so the rider can keep replacing the battery to extend run time. Weight is heavy and size is unwieldy so this is not really appropriate as a helmet light or a flashlight.
Note that when you turn the light on, you will get 700 Lumens and not the 900 as advertised in the box. You have to go through a special sequence (pressing the button for 6 seconds) to go into the special overdrive mode. This is unfortunate, since we believe a light is to turn on at the advertised light level without going in to a special mode. It's not difficult to enter this mode, but we are fairly certain many users will never realize that they are not in 800 Lumen mode by default.
Beam Pattern Photo
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. Compare all Beam Patterns here »
Integrating Sphere Measured Lumens
This light measured 896 Lumens in an integrating sphere. Claimed Lumens by the manufacturer is 900 Lumens. The Lumen-hour graph below shows how the light performs over the first three minutes of its battery cycle. Compare all Lumen Tests here »
- Incredible machining and craftsmanship
- Excellent brightness with three LED beam wide wide spill and far throw
- Water Resistant
- Field replaceable battery so run time is flexible
- Light output is stable throughout the whole cycle
- Battery charge indicator and available race mode
- Too big now to be used as a flashlight
- Lots of sharp edges with all the heatsinking
- Charging on a typical USB port can take up to 10 hours
- Not practical now for use on the helmet
- Full 900 Lumen mode is in a hidden mode
- High powered lithium cell has two adjacent leads and is easy to short out especially when transported in a pocket or hydration pack
- Price: $150
- Claimed Lumens: 900 Lumens
- Measured Lumens: 896 Lumens
- Lumens per $: 5.97 Lumens
- Lumens per gram: 3.38 Lumens
- Time on High: 1:30 Hours
- Charge Time: 6:00 Hours
- Mounted Weight: 265 grams
- Category: Flashlight/High End
For more information visit www.lezyne.com.
This article is part of Mtbr and RoadBikeReview's 2015 Lights Shootout. To see all the bike lights tested CLICK HERE.