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5000Lumen LED Headlamp Siensync(TM) 3x CREE XM-L XML T6 Super Bright $27.19

  • Last Updated:
  • Jan 4th, 2017 1:19 am
16 replies
Sr. Member
User avatar
Jun 13, 2011
730 posts
360 upvotes
5000LM lol. I think the theoretical max of a single XML-T6 is 1600lm but you're only going to get around 600 with two 18650s. I would also be afraid of those highly overstated batteries being strapped to the back of my head.
Jr. Member
Oct 19, 2012
172 posts
86 upvotes
Montr
Looks like generic crap with nothing but fake reviews
Member
User avatar
May 23, 2015
416 posts
1048 upvotes
Ontario
http://s.aliexpress.com/qINNreA7 I have this, bought a year ago. I don't know how these sellers on amazon and elsewhere get these lumens from. As an example a typical Phillips D2S HID bulb produces ~3200LM @4300k.
Sr. Member
Nov 30, 2005
605 posts
19 upvotes
Nowhere
Phoriver wrote: I would also be afraid of those highly overstated batteries being strapped to the back of my head.
I thought the same as well, with lithium batteries from reputable companies catching fire, doesn't make me feel confident about the cheap ones they provide with these lights.

I have a similar one of these in bike light form (2*XML2) powered by 4*18650 batteries, it's incredibly bright, but the batteries are not good, the run time dropped with each charge, I've only used it maybe a dozen times and run time is half of what it was when new. This setup is 1240LM which is much closer to reality than what's being stated for the product in question.

I also enjoyed reading the product highlights: "Internal wiring applies the high efficient booster circuit, working voltage is wide"
Last edited by ZUnit on Jan 3rd, 2017 11:16 am, edited 1 time in total.
Deal Addict
User avatar
Oct 5, 2005
2374 posts
1323 upvotes
It wont hit 5000 lumens ever...and its massive, gonna bounce all over the place. My advice go smaller, with one that is in closer to your head. I read a bunch of reviews and ended up going for the BD Spot, 200LM, decent throw, waterproof, lots of modes and nice and compact. Need more light than that? get a flashlight.
Deal Expert
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Feb 8, 2014
24664 posts
9994 upvotes
Socially Distanced
Phoriver wrote: 5000LM lol. I think the theoretical max of a single XML-T6 is 1600lm but you're only going to get around 600 with two 18650s. I would also be afraid of those highly overstated batteries being strapped to the back of my head.
790 lumens each at 85C typical operating temperature
This light is a typical chinese piece of junk designed to appeal to the gullible and misinformed.
The batteries are no name garbage, the charger may not have the correct CV/CC algorithm (5V charging is unfortunately common in no name garbage and potentially very dangerous) and the LED chips are very possibly fake latticebright chips.
Avoid this "deal".
In fact in Rand McNally they wear hats on their feet and hamburgers eat people
Banned
Nov 4, 2016
23 posts
11 upvotes
As a rule of thumb, when looking at such products, you have to do a conversion from SLumens ("S" stands for sh!t) to Lumens. The conversion factor is:

1 SLumen = between 0.1 to 0.5 Lumen, typically closer to 0.1
Deal Fanatic
Sep 29, 2004
5081 posts
1621 upvotes
Toronto
Man, it looks like something Doc Brown wore in Back To The Future.
Jr. Member
Oct 17, 2012
106 posts
88 upvotes
Surrey
better to put $30 towards an actual good headlamp, you could get a coast/petzl/black diamon for $30-60. if you just want something cheap, get an energizer headlamp for $10
Jr. Member
May 11, 2014
126 posts
100 upvotes
Oakville, ON
18650 at your head.... I don't think it's a good idea. And cheap batteries too. I got myself a 5000lm from ebay but with 3 AA batteries. Obviously it is not 5000lm lol but it's way better than those headlamps with 3 AAA batteries. And cheap too, 15-20cad.
Newbie
Apr 15, 2007
23 posts
19 upvotes
I bought two of these units with a different brand name but the same thing. Paid $18 from on Amazon. To me, they work great, are they true 6000Lumen No! but for $18 they were good for me.
Deal Expert
User avatar
Feb 8, 2014
24664 posts
9994 upvotes
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scales wrote: I bought two of these units with a different brand name but the same thing. Paid $18 from on Amazon. To me, they work great, are they true 6000Lumen No! but for $18 they were good for me.
Until it explodes on a few percent of users and they find out they are the same batteries used by exploding hoverboards that have been on the news.
Most people don't know about the amazingly bright LEDs released in the last 5 years, they are only slowly making it into flashlights but a well designed 4AA flashlight can cost $20-30 and not be a possible death trap.
In fact in Rand McNally they wear hats on their feet and hamburgers eat people

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