Zebralight H50 is truly unique

Joseph, thanks for the heads up on that. I have a Cree LED in my Fenix L0D and its amazing, but it starts up on MED. Nice to see the Zebra starts up on LOW. Its 'unique' feature is the 90' angled head.
BUT it seems to have on critical design flaw which means I would never buy it; no lanyard hole; inexcusable on a light in that price range.
Maybe it does and I cant see it in the pics nor specs..

Pray tell, what exactly is truly unique about this light?

Hi Ben : ) Seems to be the only CREE based AA with a 90' head. SPAM or not I found it interesting.

The zebralight is mildly interesting… but it's not a winner in my book.

On the plus side they put a very low mode in (2 lumens) which is just right for in close task lighting in the middle of the night. Many similar lights have the low at 10 lumens which is overkills for a lot of tasks.

This light on high is 50 lumens. If that was in a focused beam it would be great for navigation. Unfortunately, the lumination pattern is a flood (120 degrees), so the throw is short, making is mediocre for navigation and wayfinding.

I am still waiting for the perfect headlamp. Maybe the forth coming Fenix headlamp will be it.

Howdy Brett!

Looking at the Zebralight website:

Low 2.6 lm for 3.5 days
Medium 13.0 lm for 19 hr
High 66.0 lm for 2 hr 20 min

The high beam is impressive, but 2 hrs. won't allow for much nighttime hikes — unless you carry a generous supply of AA NiMh batteries.

Interesting that "medium" isn't anything near half way — but just one fifth power! I think that's still enough for focused camp chores, but not for hiking. The low level is just a "mood light" for inside the tent???

> Low 2.6 lm for 3.5 days
> Medium 13.0 lm for 19 hr
> High 66.0 lm for 2 hr 20 min

> Interesting that "medium" isn't anything near half way — but just one fifth power!

Remember that your eye responds in a logarithmic manner to light. So the medium is about midway in eye terms.

In fact, your eye can only just distinguish between 66 lm and 33 lm.

Cheers

Didn't know that! I am surprised though — thinking about how sensitive our eyes are to changes in light level when using a dimmer light switch. I guess that's where the logarithmic scale comes in…

OK, maybe I was a bit enthusiastic about this post, It is not a SPAM however. Anyway, Rodger is right, the medium setting appears to be midway between the low and high. Here are my observations with this light: for navigating around camp or ON A TRAIL, medium is OK, and high definately works well. For wayfinding, through the brush or forest, it's not so good, but how often are we doing this anyway? It's a nice lantern. I have an elastic jack-strap sort of loop sewn onto the headstrap, into which I keep a Fenix LOD CE, or a Fenix L1D CE for beam throw.

> thinking about how sensitive our eyes are to changes in light level when using a dimmer light switch.

It's actually more complex than that. The dimmer controls the power going into the incandescent filament in a fairly non-linear manner. But the emitted LIGHT is proportional to the fourth power of the filament temperature. And it changes colour as the temperature goes down.

Sorry: I have spent some time working on image analysis illumination and medical diagnostic illumination, and it is a … swamp. :-)

Cheers

That's actually a pretty interesting design on that light… it's a miniature version of a "Army Light" which were awefully handy (if heavy)