Tuesday, October 17, 2017

Light 'Em Up: Part 2

Economy mode @ 150 Lumens
Yesterday I posted about this new Lezyne Power Drive 1100i light I bought. Well, I had a couple of obligations last night, but I did finally get out to buzz around the neighborhood and see what this light could do.

Of course, street lights and what not pollute the darkness so I sought out the nearby bicycle trail which is canopied in trees and gets pretty black at night. I toggled between a few of the settings and decided I liked one of them that I could live with for a lot of my gravel rides. I didn't know how powerful it was, because in my mind, knowing the numbers influences you to think you have to have "such-and-such" amount of light if the number is too low and you go higher because you think you should. The thing is, you can ride off of less light on a gravel road than you think.

Back in the day, I did a lot of light testing. I was using cheaper commuter type lights that were the norm unless you went in for the ultra-powerful mountain bike lights and their attendant expensive prices. I found a hack by getting a camping light meant to be worn on the head which I modded into a head light for my bicycle. It was rated at 110 Lumens and it probably was that for the first 10-15 minutes, then it gradually got dimmer. I did plenty of night time gravel with that light. I also used a Cat Eye and Blackburn commuter lights there for a while which were similarly powered battery units with similar light outputs.

Then I got a hold of some light, I cannot recall what it was, that had 150 Lumens, and it was so much better that I determined this is all will ever need. Of course, brighter and brighter lights have come out for very reasonable prices. I have gone up in power and still toggle back to medium settings on most lights for gravel travel.

650 Lumens here, but I don't need that much light.
I tried the higher settings but I knew I didn't need that much. I ended up settling on the third from the brightest, (This was still not counting the "Overdrive" mode, which I never did try), and I rode through some alleyways to check out if that middle setting picked up the terrain clues which I need to find the "good line". I could, so I think the middle setting was just perfect. High speed downhills might require something different, but around here those don't last all that long and generally go straight anyway.

I also have to consider that I most often would be supplementing the handle bar light with a helmet mounted one, which would also help with speedier downhills.

So, despite my having three higher settings, including that "Overdrive mode", I don't think I'll often use those. What did I end up with? Well, 150 Lumens! Just like I did a long time ago. That setting is listed as lasting 9 hours and 30 minutes without the extra battery pack. I think I'll be pretty happy with this light, and I suspect night time riding will be fun with it. Also, I should mention that the light features a mode which you can use to toggle between the Economy mode, (the one I liked best), and the Overdrive Mode, which might be useful in certain situations where max light might be necessary or advised.

Finally, a comment about the light pattern not being "car friendly" yesterday in the comment section made me think. You know, most vehicles I see are trucks and SUV's, which have higher headlights than most cars. In fact, I noticed last night that most of those vehicles headlights are only slightly below my eye level. So, I am not concerned about "blinding" an oncoming driver with 150 Lumens of light when their low level lights are almost at eye level and are more like a 1000 Lumens in intensity. Plus, I don't live in Germany where that is forbidden. And I hope to be traveling gravel at night, so traffic is almost nil out there in the country. Maybe for urban commuters, that is a concern, but it isn't for me.


Derek said...

I used the 150 lumen low setting on a Cateye Volt 1200 at Trans IA v.13 and at Spotted Horse 2017. Very happy at both events. The 450 lumen "normal" mode is super bright to me (used on a handful of downhills) & I never use the high level. Both the Lezyne and Cateye have dual beam LEDs. Perhaps that's an improvement over the same lumens from a single beam?

Guitar Ted said...

@Derek- I'm noticing a lot better side fill and throw from this light. To be honest, I don't have enough experience with LED lights to say if that dual element is the reason why. I think much of the improved light we experience at 150 Lumens is also attributable to the lens/reflector technology being applied now as well. It probably is several things adding up to a better whole.

Ari said...

Companies that make bike lights have to concentrate more on battery life than how many 1000s of lumens they put out.