Has anyone who received their GT70 done DC testing on it yet?
DC testing? What is that?
Sorry! CD is what I meant to say.
Ah, Ok that makes a lot more sense. Was wondering if I had missed out on some other common measuring scale lol
DC = direct current. Bypass the driver, run the emitter directly off the batteries. Lol
I think a lot of people have measured the candela. I’m sure they will post up.
Lets hope that whatever fall that made a ding in the metal body also resulted in a broken toe or 3.
I thought "DC testing" was referring to how the GT70 performed in a swamp.
I’m surprised people have yet to answer you.
I did a quick search for “candela”.
What in the actual hell!? I just had my lens crack after I used the light for about 1 minute… it was off and I was using the original CW version when I heard a very strange sound come from the NW GT70 I received yesterday. Had a look and found this… Has anybody had this happen to theirs? I emailed Leo but don’t expect a response from Lumintop for at least a few days. What a disappointment!!!
I’ll keep you guys posted on the outcome when Leo gets in touch…
Not only has the lens cracked but looking at the reflector (that is now covered in glass shards) it seems far worse quality than the original CW version was shipped with. The original reflector was almost perfect except for a slight ‘dent’ which was similar to that noticed by another member. Sadly, this reflector has very clear rings/circular marks on it which I can only assume is from poor machinging or coating. I’ll consider it ruined now it is coated in nice glass shards.
Hopefully I received the exception to the bunch and everyone elses’ units are pristine…
Pretty annoyed. You can see the garbage job they did on the second reflector VS the first with obvious circular markings on the reflector. As for the broken lens, I can only assume lack of care has not only resulted in sub-standard reflector finish but also overly stressed glass (STOP TIGHTENING THE THINGS TO 10000000 Newtons YOU JOKERS!!!) which has broken in the first 5 minutes of use.
Seriously, Lumintop?
[quote=NITEbiker]
What in the actual hell!? I just had my lens crack after I used the light for about 1 minute… it was off and I was using the original CW version when I heard a very strange sound come from the NW GT70 I received yesterday. Had a look and found this… Has anybody had this happen to theirs? I emailed Leo but don’t expect a response from Lumintop for at least a few days. What a disappointment!!!
I’ll keep you guys posted on the outcome when Leo gets in touch…
Not surprised at all, they tighten the bezel way too tight on some of the GT’s I worked on. Found chips on the edges of a few GT’s when I removed the bezel, shards of glass would fall out, maybe it weakened the Lens. Thermal expansion…(the reflector/lens) it’s got to go some where… :rage:
Darn… that SUX!! . . :person_facepalming:
Yeah, it does…
…but I still have my OG CW GT70 in perfect de-domed condition so I am trying to stay positive…
I have no doubts that Leo will sort this out as I got an email 10 or so minutes after emailing him stating he will get back to me after the Chinese holiday 
:+1: . . . Good to hear. I think your right about Leo sorting it out to. No doubt he will……
Would you be able to get a tighter beam or farther throw if the head had a deeper reflector and larger diameter?
This is the first lens I’ve heard about breaking.
Even when some GT’s got dropped in shipping and dented the bezel, the glass held up.
Going deeper will probably have a negligible effect on the candela. A little, but not a lot. I think it was Enderman that showed me on the main GT thread why they chose this depth. It’s a good compromise.
Changing the diameter is the main thing. This makes all the difference.
Wow, that is the first I have heard of anyone breaking the lens I think in any form. They do over tighten the heads for sure, I have told them this but the option was keep tightening them the way they are or add glue. I chose to leave things the way they are since at least with enough effort the head can be removed now.
You might see what the cost to get one of the plastic lenses from https://www.flashlightlens.com/ would be shipped to you, might be about the same price as lumintop sending you a replacement and you would get a better lens that should not break in shipping. Would not hurt to at least mention the option if the price is reasonable.
I haven’t received my NW light or tracking info and don’t know if I am in the minority or the majority. Of those who purchased the NW GT70, how many of you have not received your light or tracking info?