Zebralight H51F

[syncytial]

SC - side clickie


- Syncytial.

 

[Burgess]

Thank you, Red02 and Syncytial,

for your explanations !


Now, it makes a lot more sense.

:goodjob:
_

 

[Shorty66]

So, when will the H51 finally be released? At least some pictures and a description should be online by now...

 

[MountainVoyageur]

In the same spirit as F = floody they also use W=warm tint

 

[FroggyTaco]

In the same spirit as F = floody they also use W=warm tint

Although ironically it's really a neutral tint.

 

[Shorty66]

In relation to their standard tint its a warm tint.

 

[Beacon of Light]

In relation to their standard tint its a warm tint.

yes indeed and everything is relative.

 

[SeanAU]

After a lot of research I'm also interested in this light.

I contacted Zebralight a couple of days ago about release date and they said approx 4 more weeks for the H51/H51W, with the H51F a 1 to 2 weeks after that.

 

[noddy43]

I too am waiting to get the H31 or wait for the H51, going on a cross country ski trip in a month and 1/2s time and want to get a light headlight, this will be my 1st zebralight purchase, i might not make in time to get the h51 judging by the possible release date.

 

[davidt1]

I think someone else posted 4 weeks ago that he was told the H51 will be available in 4 weeks, which is about now. I am interested to hear more about the H51F also. It might just be a great replacement for my H501. Being better than H501 won't be an easy task. As far as I am concerned, the H501 is perfect for what it was designed to do.

Having said that, a few improvements would be great in the new light.

1. A redesigned switch to prevent accidental activation. I know...I know...you can lockout the tail cap blah blah blah. But that requires two hands to get the light going again. You can not use two hands in situations where one of your hands is holding something already.

2. XP-G emitter with warm option for improved efficiency/brightness.

3. Boost circuit to take full advantage of 14500 battery.

4. Slow emergency mode

5. A larger, stiffer spring on the tail cap

And thank you Zebralight for making me my EDC light, the H501.

 

[jhc37013]

I think someone else posted 4 weeks ago that he was told the H51 will be available in 4 weeks, which is about now.

I was one of those people and that's what ZL told me in a e-mail ~4 weeks ago, so I don't know typical flashlight delays I guess.

 

[flasherByNight]

Just found this thread after I emailed ZL.

I was told it'd be "4 weeks" :ironic:

Looks like that's their standard response :duh2:

 

[e1sbaer]

Looks like that's their standard response :duh2:

I think you're right. I'm too lazy to go through the whole thread again to verify but the 3 to 4 weeks reply keeps popping up from time to time.

 

[Beacon of Light]

I think the first report of it being 3-4 weeks away, was right around 3-4 weeks ago haha.

 

[ZebraLight]

We were about to start the H51 production several weeks ago using the SC50 circuit, but decided to postpone in the last min. Instead, the H51/H51F will use a new circuit, with much improved brightness under NiMH/L91 and extremely efficient at all levels (very important to headlamps I think). Try ceiling bounce or light box tests when you have the new H51s. With an integrating sphere, we've seen brightness 10-20% over competitors latest flashlight offerings, and with OP reflectors.
H51F will use a ground glass instead of a UCL. We tried optical lens designs similar to the H501 for XP-G LEDs but not happy with the results (smooth, artifacts free, comparable to the H501). Another reason to go with the H51 body for a flood version is that a larger surface area is needed for heat dissipation. The overall weight of the H51/H51F is still way below other headlamps with similar output.
Like the H31, the circuit board of the H51 is completely shielded to protect your forehead from the EMI of these mordern high frequency DC/DC converters.

 

[davidt1]

George,

Thanks for the update. Sounds really good! Take all the time you need to make the H51/H51F an awesome and reliable light.

 

[Shorty66]

Now thats good news.
How about the pocketclip? Will it be integrated like on the SC series?

 

[flasherByNight]

awesome to hear :thumbsup:
still failed to mention release date 🙄 😛

 

[yowzer]

Instead, the H51/H51F will use a new circuit

One request: Gradual dimming when a battery's almost dead instead of suddenly turning off. Had that happen with a H501 the other night while scrambling up a boulder field 😱 ... If it flashed when low the way I've seen my H50 do before, I missed it, but that's a nice warning feature too.

 

[davidt1]

One request: Gradual dimming when a battery's almost dead instead of suddenly turning off. Had that happen with a H501 the other night while scrambling up a boulder field 😱 ... If it flashed when low the way I've seen my H50 do before, I missed it, but that's a nice warning feature too.

My H501 is unpredictable. Sometimes it flashes; sometimes it dims gradually; sometimes it just dies without warning. Of the three things it chooses to do, I prefer flashing. But I will take gradual dimming too.