Info SOFIRN SD08 3200 lumens dive light with RGB beacon

[ChrisMBC]

I agree with the others that the RGB lighting is really not going to be a draw for most people.

The two things I’d really love to see for some differentiation:
- A light with a battery size somewhere between the 1x 21700 or 4x 18650 sizes that are common. A light with 2x 21700 would be a really good weigh/size and allow for better runtime

- A better attempt at a combo spot/flood light. One interesting approach I’ve seen in other lights is to keep the good-quality single LED emitter (like the SFT70), but surround the rim of the light with a series of smaller LEDs with no reflector, which work as a good flood light. See the Nanight X1 and Tecline Teclight as good examples of this. Having 2x 21700 batteries could enable a slightly higher current draw to allow for a really bright and effective flood.

 

[profmason]

I agree with the others that the RGB lighting is really not going to be a draw for most people.

The two things I’d really love to see for some differentiation:
- A light with a battery size somewhere between the 1x 21700 or 4x 18650 sizes that are common. A light with 2x 21700 would be a really good weigh/size and allow for better runtime

- A better attempt at a combo spot/flood light. One interesting approach I’ve seen in other lights is to keep the good-quality single LED emitter (like the SFT70), but surround the rim of the light with a series of smaller LEDs with no reflector, which work as a good flood light. See the Nanight X1 and Tecline Teclight as good examples of this. Having 2x 21700 batteries could enable a slightly higher current draw to allow for a really bright and effective flood.

The Sofrin SD09L is a dual 21700 light. it uses 3x SST40 emitters. I have used as a primary on a few dozen dives, but the extra length is a bit cumbersome on the wrist after a few hours. I don't like the push button control scheme (I like the twist on the SD05 etc) and also don't like the lockout. The beam spread is a pretty good compromise between enough spot for clear signals, but enough flood to see around.
I think my wishlist would be a single XHP70.2 with a twist off / low / med / high control like the SD05, with a double 21700 setup parallel(shorter and fatter) to keep the light short on the wrist. Add in the USB-C charging feature of the wurkkos DL06.

I am pretty much describing the Wurkkos DL10R (which I currently dive with) but run time is only 90 minutes on the single 21700.

 

[bork-it]

I changed the LED in the SD05 and got a ~5 degree Spot with a bit of spill and roughly 60000 lux @1m distance. As soon as I get the test sample of the SD08 I could show a comparison.

Now this interests me, a SD05 with a ~5 degree spot would be amazing, wold you be willing to give a quick guide on how you did this and what LED you used?

 

[ChrisMBC]

The Sofrin SD09L is a dual 21700 light. it uses 3x SST40 emitters. I have used as a primary on a few dozen dives, but the extra length is a bit cumbersome on the wrist after a few hours. I don't like the push button control scheme (I like the twist on the SD05 etc) and also don't like the lockout. The beam spread is a pretty good compromise between enough spot for clear signals, but enough flood to see around.
I think my wishlist would be a single XHP70.2 with a twist off / low / med / high control like the SD05, with a double 21700 setup parallel(shorter and fatter) to keep the light short on the wrist. Add in the USB-C charging feature of the wurkkos DL06.
View attachment 900181
I am pretty much describing the Wurkkos DL10R (which I currently dive with) but run time is only 90 minutes on the single 21700.

Oh yeah, I meant side-by-side 21700s, the extra length of two in series is completely impractical.