Armytek Wizard Pro vs Zebralight H600fc MKIV Measurements

Great round-up, thanks for doing this comparison.

Just a quick question, how do you measure CRI? Via bounce on a white surface or directly into the spectrometer?

Great job, thanks!

I like my Wizard Pro Nichia but I also prefer the 4000K of my H600Fc and I completely agree that the Zebra headlamps are amazing feats of engineering - small, efficient, and tough. I just wish they’d (Zebralight) offer some better emitter choices or that they would be easier to mod.

I ordered 5 Wizard pro headbands for my new E21a H04RCs. I think that’s going to be my go-to setup - Clemence H04 in an Armytek Wizard headband.

Once those come in, I will likely sell off most of my remaining 18650 headlamps.

Thanks for doing this testing!

The claims of Zebralights being super efficient are unsubstantiated. From Maukka’s testing, Zebralight’s efficiency is average at best.

Maukka tested the H600fc MKIV with an efficiency of 89lm/w whereas the 90CRI Wuben TO56R has an efficiency of 125lm/w. The Olight H2R 4000K 70CRI is 135lm/w and the new Olight Perun is even more efficient.

In terms of driver efficiency Zebralight is a far ways from the level of Olight and Fenix. Though with the latter two, you are stuck with ugly (IMO) CW :person_facepalming: emitter options and no HI CRI.

To be fair, Zebralight’s SC64c is amazingly efficient at 140 lm/W on its 80 lumen level

and 117 lm/W at 300 lumens

The Wuben TO50R got 125 L / W when it was tested at 248 Lumen setting.
The Zebralight H600FC MK4 got 89 L / W when it was tested at 410 Lumen setting.

You can’t compare these two figures, because the luminous efficacy of an LED is not linear. If the Zebralight was tested at 248 Lumens like the Wuben, then you can, all else being equal.

As for the Olight H2R getting 135 L / W, what setting was this tested under? I would expect it to be higher, as its a 70 CRI LED, and this does not mean the driver is more efficient.

True. To test one driver’s efficiency against another, they would both have to be driving the same emitter at the same output.

I do know that a Zebralight SC62w has been running for over 400 days on its lowest moonlight setting powered by a single 18650 battery. That’s pretty efficent to me. https://www.reddit.com/r/flashlight/comments/f118x3/day_404_no_error_here_zebralight_sc62w_001lm/?utm_medium=android_app&utm_source=share

Directly onto the spectrometer.

Do you have any idea why the SC64c with an XP-L2 emitter that is supposedly less efficient than an XHP50.2 can manage 106 lm/w at average 400 lumens whereas the H600Fc MK4 only manages 89 lm/w at 400 lumens? Is it because the XP-L2 is 3V and the 50.2 is 6V? If so, maybe ZL’s 3V driver is efficient but ZL’s boost driver efficiency is behind the competition. I wish ZL would send you every single model to test so we know what we are buying. Driver efficiency is an important factor to me at least.

I measured 1312 lumens for the H600fc MK4 at 30s compared to your 1124 lumens at 30s. Strange because most of the time my testing setup measures lower than yours for the same light. I’m wondering if ZL found a higher bin or is it just unit to unit variation. That’s quite a huge variation though considering all the identical Olights I measured have near identical output.

A bit above 600 lumens according to the graph.

Efficiency is lm/w. Doesn’t matter how long it runs if the output is super low. Even my Armytek Tiara Pro 18350 w/ the E21A 2000K 9080, which is the most inefficient of the E21A series, has been on 24hrs/day for the past months on the lowest mode and still going. This doesn’t prove the driver is efficient just that it has a great firefly mode.

How are you calculating 135 L / W at that setting of just over 600 lumens?

In my opinion, SH H04RC (don’t confuse with discounted H04) headband and bracket is much better than AT. The quick release bracket allows the pocket clip installed on headband and it’s very sturdy. also the anti slip strip is extremely useful in retaining your headband adjustment. But on the other hand, if you buy discounted H03/H04, you get the mushy silicone rubber headband which almost always requires the top strap to be used. Otherwise the light will bounce even when walking.

[Clemence]

I haven’t seen the new H04 headband yet so I am looking forward to checking it out when my E21a H04s come. That is, of course assuming China ever gets back online.

Okay, but Lumens per watt at different output levels seems to be cherry picking. I feel like the correct way to test something like that would be to do it across all output levels and average the results.

No, IMO the correct way to measure it is by removing the driver and adjust the output so both drivers outputs the same. Every driver design has their own sweet spot.

[Clemence]

Problem is the drivers between flashlights don’t have equal output modes to compare so we can only only rely on whatever graphs and efficiency measurements reviewers provide. Also we have VERY LIMITED flashlight efficiency data to use. Besides Maukka, I don’t think anyone else does efficiency measurements. Measuring efficiency is a huge undertaking as it requires a lot of time to run the battery down. I am grateful with whatever data we get from reviewers here. Therefore we can only get a rough comparison to get a general idea.

Maukka’s graph includes several lights overlaid over each other. The other flashlights were all running at higher output than the H600fc, so the comparison makes sense. Flashlights are less efficient on their higher brightness modes. Again these are not exact differences in efficiency. Even measuring two lights of the same model at the same output mode will result in different efficiency results. Just look at my output measurements for the two Wizard Nichia units or my H600fc measurements vs Makka’s H600fc measurements (but that is a rather extreme case).

The information we have on flashlight efficiency is indeed very limited, and I understand that we can only rely on any testing that has been done so far by generous forum members. This does not mean, on the other hand, that we can draw conclusions on driver efficiency if the limited data available is not comparable.

The H600fc MK4 effiency of 89L / W was tested at 410 lumens. The graph showing other lights only shows output and runtime of different lights with different emitters and different CRI levels. Where are you calculating or getting the Lumen/W at those higher levels? I still don’t see how you can conclude that a comparison can be drawn between different lights and where the lumens/ watt data is coming from. As per my previous question, how are you calculating 135 L / W at that setting of just over 600 lumens for the Olight?

To make matters more complicated, each driver will have optimal efficiency at a specific output. So Driver A may be more efficient at 3 amps, and Driver B might be more efficient at 1 amp. So driver A may be more efficient than driver B in one setting, and the opposite is true at another setting. As far as I am concerned, none of the data above dictates that one driver is more efficient than another or vice versa.

135 lm/w was calculated by Maukka. I dont know how it was calculated