Cheap Chinese vs Genuine Cree?

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Cree is just a LED manufacturer, one of the a few that is capable of making high power LED. The cost of Cree LED die alone is very low. Chinese dive light makers do use LED from Cree, so by definition, they are genuine Cree light.

And not everything made in China is low quality. Think all your smart phones, I device ... the much praise DRIS 1K and DGX 600 are also just rebranded Chinese products.
Agreed.. i have taken apart a good handful or more cheap china lights, and looks to be genuine Cree emitters.
I also agree that not all cheap china electronics is crap, if you say it is, you just don't know what your talking about..
The big nono i feel with uw China lights is that they pretty much glue the "whole" thing together, meaning it will not(!) last as long as a light where you can disassemble and lube parts...
Can also be mentioned that some of the china led light are just driven to hard, and with a driver thats isn't 100%, eventually the driver or led emitter will say goodbye.
 
I don't think you can really speak of "cheap Chinese lights" anymore than you can speak of cheap US made lights or anything else.

Some work well (after all it's only a flashlight) and some don't (for the reasons listed above in this thread). I have a Chinese made light that was about $100 and it has worked well with no problems.

Just do your homework and try to read user reviews (legitimate user reviews).
 
I went through a phase of trying to but the cheapest dive lights on the market just to see how good they were (or not). In the end I bought about a dozen lights ranging from £5-40. Of the one I bought 4 still work, probably about 50 dives on each. All of them made wild claims about the lumen rating, many of them use 18650 cells and most were Chinese produced.

2 of these lights are now part of my regular kit as a secondary and backup light, the other 2 are in the spares box for lending to others. In total I spent about £200, the price of a decent main light, and have ended up with 4 decent back ups. Without exception those that failed were due to water ingress, normally via the switch.
 
Over the last 3 years I bought and tried a total of 9 relatively cheap lights off Deal Extreme ( Buy Diving Flashlight at Dealextreme with cheap price - DX ) the cheapest being 10US and the most expensive 45US. The 2 at 10US are great lights but not suitable for diving below 5 or 6m as the water pressure operates the button, so they were relegated to general use at home and in the car.
2 at 16US were complete garbage and never worked reliably, both finally suffering control circuit failures.
2 at 22US are great compact lights and are in regular use within recreational depths.
Out of the 3 at 40-45USD, one had an electronics/LED failure, the other 2 work fine but being heavier and larger end up being replaced on dive trips by the compact ones that cost 22USD and have the same light output.
Without exception all the lights I bought on this site needed to be completely stripped down before use, o-rings inspected and lubricated. Most of the lights arrived with dry o-rings and some with damaged or in one case a missing o-ring (although this was a redundant one as the light was supposed to have 2).
All the lights use 18650 or 26650 and I bought a number of spares of both types. I probably spent another 30US on batteries. I also spent about another 5US on a variety of o-rings used rebuilding the lights.
Some of these lights proved to be poor quality but most are going strong after a couple of years of use.
So overall I probably spent about 250USD and ended up with 4 good and well tested diving lights with high output on max setting (I've had more than one request from DMs leading night dives to reduce beam intensity) plus 2 general waterproof utility lights plus a number of reserve batteries and a variety of car and wall chargers.

PS: By stripped down, I mean completely stripped down. Not just the tail end where the batteries are inserted. I also opened up the front-end, lens seal, main body seal, rotating ring with the magnet for the magnetic switch, lubed with nautical grease the spring and ball arrangement that provides the click positioning of the rotating ring.
 
https://www.shearwater.com/products/swift/

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