Zebralight quality??

[Marduke]

Then explain it.

We did, you just said "nuh uh"

Try reading the above posts AGAIN (or for the first time....)

More specifically Zebra light claims... "Protected against continuous immersion (1 meter, >30 minutes)"

This is obviously a lie.

No, they claim it meets the IP68 spec, which is NOT what is repeatedly described above. Again, try READING the post above.

I actually had the OK from my GF and had 2 of the 501s in my box for checkout a few minutes ago when I first posted in this thread. The BS about it meets spec but is not waterproof really made me consider if I was willing to spend $124 on lights that dont meet the claimed IPX8 spec. I didnt order. I think at least it made me make a more carefully considered decision. I will await some kind of response from Zebralight about why their lights fail to meet the spec. I have never had a light that could not be submerged in a foot of water for 10 minutes. I will be damned if I start now with a $60 light made in China that wont meet published specs. Heck I can accept mildly radioactive materials or child labor since they dont claim thsoe are not used in production but I just cant accept lying about meeting a spec. At some point you just have to be pissed off enough to vote with your dollars.

Which brings us to your real agenda... 😗

 

[csshih]

Heck I can accept mildly radioactive materials or child labor since they dont claim thsoe are not used in production but I just cant accept lying about meeting a spec.

on a side note, the clip on my romisen RC-N3 is supposedly slightly radioactive. :nana:

but anyways, I digress. just read the posts thoroughly.. 🙂

and.. remember.. just because it's expensive, doesnt mean that you shouldn't maintain/baby it..
I mean..
look at those expensive ipods!
at that price.. protective cases should be included.

 

[Dan FO]

A vacuum test on any small sealed device will tell you exactly what it will do.

http://www.timezone.com/library/archives/archives631703133992922740

 

[kwieto]

No, they claim it meets the IP68 spec, which is NOT what is repeatedly described above.

For them is.
It is stated on their webpage - "continuous immersion 1m, >30 min", point.

That statement is from the spec, not from their advertising dept. The spec is for lab testing certification, NOT USE.

Can I put it to my signature? Please...
It is the funniest thing I've read last days.

IP (International Protection) norm is not designed to have fun in labs, but to give users accurate information.
And to avoid situation when someone is writing "waterproof" and in fact it mean nothing.

IF you will get some damage because product is not meeting declared norm, you can sue producer in court.
I.e. Peli or Otterbox cases are designed to protect very expensive equipment, and they waterproofness is described also with IP norms.
No one would buy them if they were designed like you say, that the norm is "only for laboratory tests" :")

And, by the way. If something needs additional maintenance, it should be stated in manual and/or specification of that product. There is nothing about lubricating O-rings from Zebralight side.
In fact O-rings in my H50 were lubricated, but O-ring in H60 is not.
Somebody forgot do to that in the production?

Should I mention, that Otterbox or Garmin products are meeting the IP68/IPx8 norm without any lubrication of seals needed?

 

[De-Lux]

Re-read the depth specification of watch posted earlier, you would see dynamic pressure is much much higher than static pressure at the same depth. A watch rated for 30 meter should not even be taken swimming, and zebralight is only rated for 1 meter.

If a watch rated for 30 meters should not be taken swimming, then a ZebraLight rated for 1 meter shouldn't even be taken out of its packaging. Okay, its all starting to make sense now. Does this only apply if I am wearing my ZebraLight on my wrist?

P.S-Actually the ZebraLights are rated for 3 meters for up to 30 minutes in laboratory settings. This figure does not apply in real life settings (of course) and whatever you do, do not question the claim of 3 meters for up to 30 min. If you do question the claim, you risk being ridiculed by being called words like "troll" or "noob" which will be followed by the accuzation of you having an "agenda". Fluid dynamics is a very comlex subject. The effect of fluid dynamics on the body of a flashlight is truely only understood by a select few and guess what! You are not one of the select few. Yadda Yadda Yadda Yadda Yadda

 

[dcycleman]

I know, these guys sound like they must be in charge of sales at zebralight, even better the warranty department!!

 

[jzmtl]

Well, we were trying to explain to you how the mentioned testing standards work in real life, but you two obviously have no interest in listening.

 

[Woods Walker]

I actually had the OK from my GF and had 2 of the 501s in my box for checkout a few minutes ago when I first posted in this thread.

You need an ok from your GF to buy a headlamp? Anyways it is a good headlamp however there are lots of good headlamps on the market so I hope you find what you are looking for and get the permission to buy it.

 

[Marduke]

Well, we were trying to explain to you how the mentioned testing standards work in real life, but you two obviously have no interest in listening.

I think it's time to give up. Those who wanted to learn something have, those who haven't gotten it yet will never.

 

[Marduke]

For them is.
It is stated on their webpage - "continuous immersion 1m, >30 min", point.

Yes, that's a bullet of the SPEC, not the product CAPABILITY in actual use. This is the same as a 50m watch not being able to do anything other than swimming.

Meets IP68 in accordance with IEC 60529

• Dust-tight
• Protected against continuous immersion (1 meter, >30 minutes)

IP (International Protection) norm is not designed to have fun in labs, but to give users accurate information.
And to avoid situation when someone is writing "waterproof" and in fact it mean nothing.

Actually it's just that. It's the maximum delta P tested in a lab. So Mr. Average Joe has even a clue what that is, they put it in terms of depth of water. This depth does NOT correspond to a WORKING DEPTH of the product. Again, try reading the above explanations...

The max delta P experienced in use does NOT correspond to using the light at anywhere NEAR that depth.

See my above link to the general IP discussion thread if you actually want to learn something.

And, by the way. If something needs additional maintenance, it should be stated in manual and/or specification of that product. There is nothing about lubricating O-rings from Zebralight side.
In fact O-rings in my H50 were lubricated, but O-ring in H60 is not.
Somebody forgot do to that in the production?

So, if someone didn't tell you not to swallow gasoline, it should be fine to do, right? After all, no one ever explicitly TOLD you it was bad, right?

A little consumer common sense has to come into play somewhere. ALL products need proper maintenance for proper function. For flashlights, this means routinely cleaning the contacts surfaces and applying the
correct amount of a suitable lubricant.

 

[PlayboyJoeShmoe]

Tra La La.

My H30 Q5 makes a GREAT reading in bed light.

It doesn't rain in my bed, nor do I live in a pool.

THAT said, I usually don't go out in the rain, but wouldn't hesitate to do so with my H30.

Anyone who would try to use one of these underwater is just asking for problems.

 

[drmaxx]

I think it's time to give up. Those who wanted to learn something have, those who haven't gotten it yet will never.

I think you made a good effort to explain the common understanding of the IPxx ratings. In a free world people can insist to believe their own interpretation - no need to go crazy about that.

 

[HKJ]

I think you made a good effort to explain the common understanding of the IPxx ratings. In a free world people can insist to believe their own interpretation - no need to go crazy about that.

I do not believe he made a good effort, he stated an opinion that the IP ratings does not mean what it says, but he proved no links to any documents that supported his opinion.

And no more comparison to watches please! They are not rather according to the IP specification.

 

[drmaxx]

I do not believe he made a good effort, he stated an opinion that the IP ratings does not mean what it says, but he proved no links to any documents that supported his opinion.

Marduke made very clear that the IPxx is a measurement protocol and not a description what the tested item is capable of in the real world. These are two completely different things - inconvinient but that's just how these things work.

What you believe what the implications in real life are is up to you - but not part of the IPxx procotol. So, if you unhappy and return your car because it consumes more gas then the MPG rating was then this is between you and the dealer.

 

[HKJ]

Marduke made very clear that the IPxx is a measurement protocol and not a description what the tested item is capable of in the real world. These are two completely different things - inconvinient but that's just how these things work.

In Marduke's opinion they are different, but he provided only his opinion on it, no links to other documents that share this opinion.

Try reading the IP specification, it lists some very practical conditions, not laboratory test conditions.

 

[dcycleman]

first of all if I bought a watch rated to 50 meters or roughly 150 feet, and I dove in a pool and it leaked, it would be defective, period. I'm a diver and my dive partner uses a cheapo watch rated to 100 meters, and we routinely dive to 70 feet he even pushes the buttons underwater. However I also agree that whatever some cereal box watch company rates their product at is completely moot to this discussion. I think its funny that as consumers you have been convinced that a manufacturer doesnt reeeaaalllly have to mean what they put on the label. I guess I'm just not that complacent. I think that manufacturers should stand by thier claims as should their product.

 

[De-Lux]

This is the same as a 50m watch not being able to do anything other than swimming.

What about tell the time?:thinking:

 

[HKJ]

first of all if I bought a watch rated to 50 meters or roughly 150 feet, and I dove in a pool and it leaked, it would be defective, period.

You have to look at what standard did that 50 meter rating follow, the normal watch ratings are not really usable for anything. But ISO6425 is fine, if it is rated 100 meter, it is tested at 125 meter. According to Wiki a fast swimming diver will add a dynamic pressure that is equal to about 5 meter of water.

 

[Glock27]

Boy!....This thread has really gone downhill.
Looks like there are 2 distinct camps here. One camp actually owns some ZebraLights. Have used them and report overall good quality.
The other camp doesn't actually own any Zebralights, but prefer to bash anything not union made in the US.
G27

 

[noelex]

first of all if I bought a watch rated to 50 meters or roughly 150 feet, and I dove in a pool and it leaked, it would be defective, period.

I have to agree that the IP rating is misleading and most consumers reading the rating get a false idea of the water resistance of products, but the reality is that most watches rated to 50m will leak, at least eventually, if you dive into a pool as will most watches rated to 100m if you dive to 25m.