Small MRV questions

[cranphin]

Hi!

I had some small questions about the MRV which I'm sure people here 'll know how to answer.
Got mine from a proper dealer, not DX btw.

- Front O ring, how do you keep it from popping out after switching the reflector and tightening ?? Any recommended ways ? Grease it up, clean it, freeze it ?? Not tightening isn't really a good option No idea how they did it in the factory but I'm failing at it

- 'focus ring/adjustment' It mentions that on the DX site. I don't think there's really such a thing tho ? The only way I can think of is unscrewing the head partly form the chrome part, but that doesn't sound like a great idea, even if it seems to work ?

- 1st/2nd generation. There's been several mentions of an old and a new generation, how do you tell them apart? Can you use the serial number? Any distinct differences in the body? (don't think anodizing is a straight giveaway, sice there seems to be a lot of variations in it? Mine's Shiny black hal II ) Or just look at the serial number?

Mayby we could all post our serial numbers and compare to figure out the generations
Mine's MRVB0705A0165

 

[Thujone]

- Front O ring, how do you keep it from popping out after switching the reflector and tightening ??

Don't over tighten. That is all it took for me. Also no focus adjustment to my knowledge. Also on the generation I think you can tell by the tint of the anodizing. But who cares...

 

[Patriot]

Yeah, what Thujone said. Resist cranking it down as hard as you'd like to. The dryer the o-ring the better. Maybe clean the hand oil off with a little rubbing alcohol before inserting it. The more tact against the housing..the better.

No adjustable focus. It should be pre-focused pretty well.

I'm believe the black type II anodized are from the newer batch. At first they were light gray anodized, the the black was available and now the dark green with HA. No major differences in the body other than slightly different machining cuts on the tail cap. People have tested the newest lights and found them to be marginally brighter. The SE edition will appear outwardly the same with the exception of the "SE" designation, but will have a Q5. Shipments are still scheduled for the 13th on the SE.

 

[merlocka]

No adjustable focus. It should be pre-focused pretty well.

Turning the head/bezel with respect to the chrome "driver" barrel does provide some amount of focust adjust on my MRV. My unit was a bit "over" focused out of the box, and backing it off a bit actually gave me a slight improvement in the beam shape at long distances (at the expense of a slight donut hole up close).

 

[cranphin]

Thanks for the info!

Yeah, I thought the focusing thing they mentioned wasn't quite right
Just wanted to make sure, considering there's no manual

Seem to be doing ok by cleaning the O-Ring, and tightening it very very slowly and carefully, seems to get it to a tightness where I like it.

Brightness is what I was wondering about, since I did see people mentioning the 1st gen is a bit lower. Guess it doesn't matter that much

 

[Thujone]

Guess it doesn't matter that much

Given that they are the same emitter except the SE all brighter will get you is less run time. And all for a brightness increase that you could never notice without a meter... No thanks.

 

[sims2k]

Anyone knows what is the difference between MRV you buy from DX, from eBay or from BatteryJunction. Why the big price difference ?

 

[gsegelk]

There have been many discussions about this throughout several threads. Here's a link to the main thread where this is discussed:
http://www.candlepowerforums.com/vb/showthread.php?t=170697

This should at least give you a summary of the different explanations floating around...A quick search on CPF will yield many more threads about this.

Anyone knows what is the difference between MRV you buy from DX, from eBay or from BatteryJunction. Why the big price difference ?

 

[Patriot]

Anyone knows what is the difference between MRV you buy from DX, from eBay or from BatteryJunction. Why the big price difference ?

Below is a quote from LumaPower about DX MRVs

Lumapower
"There have been disqualified components and parts that rejected during IQC and production. It came to our attention that there have been Lumapower products (mainly MRV and D-Mini) being sold in unauthorized channels recently. We did check and find that they are fake Lumapower flashlights using disqualified parts.

Lumapower is a brand and trademark of Xynet (HK) Technology Development Company. No warranty will be provided to those Lumapower products which are purchased through unauthorized channels. We reserve the rights to take legal action against any party that uses "Lumapower" without our authorization."

 

[sims2k]

Patriot36 and gsegelk : Thanks for the info...very helpful. But still...I am tempted to buy one just to see if the cheapest MRV works like the "official MRV".

 

[cranphin]

*giggle*

Have a 'official' and a DX one now ^_^
DX seems same quality really, haven't opened up the electronics tho, should do some AMP measurements and so
Might do a comparative review sometime soon ^_^

Interesting, the serial number on the DX one is actually higher then on the other

 

[Patriot]

It may very well be the same, only without any warranty. If you get a lemon, you're stuck with it. For the difference in price, I'd rather support faithful CPF dealers and manufacturers. Battery Junction, Lighthound, Pacific Tactical, Fenix Store, Spyder Tactical and many others have all been there for us. They've answered our questions, given us insider information and taken care of problems. I guess I don't have the desire to spend $75 hard earned bucks on a questionable product. I'd rather buy one light that I know I'll own for many years than 3 cheapies of less quality or character. I've also noticed that there are more jeers about dx than any other seller. I'm not condemning anyone to buys from dx, it's just not for me.

 

[MattK]

Given that they are the same emitter except the SE all brighter will get you is less run time. And all for a brightness increase that you could never notice without a meter... No thanks.

The Q5 runs at the same current as the P4/Q2's so runtimes are for the standard MRV and Special Edition are identical. The MRV-SE Q5's arrived today and in a side-by-side there's no question that they're noticeably brighter.