Hello,
I have a video review, tear down photos and my thoughts of an expensive dive light that was sent to me by Dealextreme.
It's the SingFire SF-605
The light is a 3x XM-L light and 5 modes - L/M/H/Strobe/SOS It runs on two 26650 batteries. It comes with the light, batteries, charger and lanyard, in a black box.
Pros:
Fit and Finish is great
Better than the average construction
It's waterproof (at least in the pool it is)
It's massive, thick sidewalls and heavy
It has super thick and heavy pill, great for modding
Cons:
It has no switch. It is a twisty for changing modes and it does not work as it should. It's very hard to turn the tail cap, to change modes and it skips modes, due to an inconsistent make/break contact when twisting the TC.
It only puts out 2 amps on high. There's enough mass to put out 5 amps per led on high.
I'm still not sure if it has mode memory and modes seem to "disappear".
It has a very deeply recessed lens/reflector, resulting in a strange beam pattern.
Photos of the breakdown:
Everything about this light is massive. The tail cap is super thick. Threads are not square. They should have been.
Threads are done ell, but the anodizing is thin and bare spots show through already. It would only get worse, since it's a tail cap twisty.
Bezel
Head is also very heavy and very thick. It is a great candidate for an MT-G2 at 9-10 amps.
After taking the bezel off, you can see another ring that holds down the thick plastic lens and compresses the O ring under it.
The reflector and pill unscrew together and you can see the holes for turning it out.
Again, the pill is massive and thick. The thickest pill I have seen to date in any light.
The three photos above show the driver.
Well, there's more than enough thermal paste there. A little overboard I think.
That's it. Due to the tail cap twisty thing, I cannot recommend this light. Otherwise, it's the heaviest, most robust light I have ever seen.
Thanks to Dealextreme for sending it for review. It will be another giveaway light in the months to come. I would not be surprised if DX didn't want me to review any more lights, but I can't like something when it doesn't work properly.