Quick video review and tear down of the SingFire SF-605 Diving light, from Dealextreme

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:

sf1a

Everything about this light is massive. The tail cap is super thick. Threads are not square. They should have been.

sf1b

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.

sf1c

Bezel

sf1e

Head is also very heavy and very thick. It is a great candidate for an MT-G2 at 9-10 amps.

sf1d

After taking the bezel off, you can see another ring that holds down the thick plastic lens and compresses the O ring under it.

sf1f

The reflector and pill unscrew together and you can see the holes for turning it out.

sf1g

Again, the pill is massive and thick. The thickest pill I have seen to date in any light.

sf1h

sf1i

sf1j

The three photos above show the driver.

sf1k

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.

Can you show us the internals of the tail twisty thing?

And awesome review…big beefy pill…nice!

Thanks for the honest review OL. I guess this is one light your not a fan of. Looks like the charger is safe for now. Makes sense to me.

Nice review. Thank you.

That looks like the "good" TR-3T6 driver with the 2 extra components (Bays Q1 and Q3) under the toroidal inductor on the horizontal PCB. They are hard to find anymore. I used one to drive a dedomed XM-L2 at 7amps with 3S 18650's. Seemed to work great for that. The UI would be awkward in a a twisty though. Unless you rely on the mode memory to just use one mode.

Werner has a great MCU piggy-back mod for it. That and a waterproof electronic switch mod would make that a very nice light.

It’s just a plain tail cap. The tail cap touches the end of the body tube and when you loosen the tail cap, you are just breaking contact of the negative path, that’s all it is.

tr1

tr2

tr3

tr4

The driver has TR-01590 on it.