Thanks for the review!! Got any outdoor beamshots on this?

haha cool and thank you.
We offer 40% off code for this newly diving light. Any interested, just email us@sofirnlight.com. Thanks.

Thanks for the nice review. I really think this is a goodlooking light and it has lots of performance going with it. Even as a non-diving flashlight it is compact enough to be interesting.

BROODMASTER wrote:

MascaratumB wrote:

Thanks for the review!! Got any outdoor beamshots on this?

That’s a good idea!  I’ll look for a spot and add them.  I swear the SD05 has tighter beam than the new SP33 and with a slightly larger reflector, it should.

Thanks for the review! Reserved all!

This is a welcomed thread; I just purchased the Thorfire TD01 and while it is only 18650 powered, it is really has same basic setup with the rotary switch. I purchased it for the waterproof depth though I’m not a diver.

The main difference between the two appears to be the lumen outputs and the rotary levels; the Thorfire’s first “notch” is high as opposed to low with the Sofirn. I have, however, noticed a slight delay of sorts that allows me to twist all the way to low before the light actually turns on. This must be done pretty quickly though…

Thanks for posting the pictures It gives a glimpse of what it does! Being a simple light, I am tempted to buy it and leave it at my parents home for them to use . I’m only afraid of heat on high mode..

Thanks for posting

how far deep can this light tolerate under water ?

Nachtfeuerzeug wrote:

gamezawy wrote:

how far deep can this light tolerate under water ?

I don’t think anyone has confirmed the 100m specification but this is the deepest I’ve seen the light in use: Video Review

I have just ordered the light
Will try it down to 60-70m just like I did here:
https://youtu.be/7kliQGweYXg?t=91

Too bad the turbo mode is going to high after 3 minutes…

I recently tested the SD05's thermal regulation.

http://budgetlightforum.com/node/68469

It seems to work like a charm. I did not manage to drive it beyond 55°C (ATR thermal threshold for stepdown) even when restarting the high-mode. It would be nice to run the SD05 without time-triggered stepdowns.

Nachtfeuerzeug wrote:

@Hoosh, thank you for pointing out the TD01. Yes, similar lights. 

Last night when I took the beam shots, it was kind of bound to happen but it fell one time on the ground and the soil is a lot like sand. Just from that minor drop, enough got under the switch ring to bind just a bit. I washed it twice but still doesn’t feel exactly the same. I noticed some instructions with the Thorfire product that mentioned lubricating the switch so I’m curious if anyone can tell me what lubricant is recommended. One concern I have is that some lubricants may eat at the anodization. Others may trap grit under the ring.

It would be great to hear from any divers on the forum.

I have been looking for a new budget light since i buy for poverty people in provinces that provide foods for their families by fishing daily and was looking into this one.

Just got a bit skeptical reading the “manual” and was wondering if anyone have the estimated time it actual manages to run? (lets say the included 4000mah 21700 battery states the below)

low 300 = 8.16h
mid 900 = 2.30h
high 2550 = 1.38h

Comparing other lights with a single battery and simular inputs this sounds to be way way off

Nickerian wrote:

Just got a bit skeptical reading the “manual” and was wondering if anyone have the estimated time it actual manages to run? (lets say the included 4000mah 21700 battery states the below)

low 300 = 8.16h
mid 900 = 2.30h
high 2550 = 1.38h

Comparing other lights with a single battery and simular inputs this sounds to be way way off

Assume you have 15Wh of energy (4Ah x 3,7V avg)
The turbo high (~24W?) switches to medium(12W) after 3 minutes.
At the end of discharge this so called ‘high mode’ is probably only 7-8W.
So dividing 15Wh by average 10-11W gives good aproximation of ~1.5h.

Mieciu wrote:

Nickerian wrote:

Just got a bit skeptical reading the “manual” and was wondering if anyone have the estimated time it actual manages to run? (lets say the included 4000mah 21700 battery states the below) low 300 = 8.16h mid 900 = 2.30h high 2550 = 1.38h Comparing other lights with a single battery and simular inputs this sounds to be way way off

Assume you have 15Wh of energy (4Ah x 3,7V avg) The turbo high (~24W?) switches to medium(12W) after 3 minutes. At the end of discharge this so called ‘high mode’ is probably only 7-8W. So dividing 15Wh by average 10-11W gives good aproximation of ~1.5h.

Nachtfeuerzeug wrote:

Nickerian wrote:

I have been looking for a new budget light since i buy for poverty people in provinces that provide foods for their families by fishing daily and was looking into this one. Just got a bit skeptical reading the “manual” and was wondering if anyone have the estimated time it actual manages to run? (lets say the included 4000mah 21700 battery states the below) low 300 = 8.16h mid 900 = 2.30h high 2550 = 1.38h Comparing other lights with a single battery and simular inputs this sounds to be way way off

Looking at the run time graph in the review, the actual is 2.2 hrs for my sample (starting from turbo). Low is approximately 300 lumens and bright enough for many tasks. 

I’ll set up a run on the low mode, tonight. Report to follow…

Nachtfeuerzeug wrote:

Following up, the light ran for 8 hrs 20 minutes where it dropped from 900-475 lux (300-150 lm) down to 281 lux and below. I shut it off & found voltage to be at 2.7V.

Thanks for the update and testing, looks very promising and already contacted Sofirn to order a few of these.

I’ve noticed and increase in shark activity in my swimming pools so I wonder…….will it repel sharks?

What is interesting about his is that I can use it in highly “wet” areas. Like if a snowblower jams at night, I can use it without worrying about water melting on it and causing a lithium bonfire. Or using and abusing it through wet work gloves. That already happened to me last winter and even though the flashlights are “waterproof” I was a bit concerned about snow melting on it. Although it did keep it cool!

I wrote on a previous post I don’t need another flashlight…….yeah, right…..

No worries, marked-as-spam.

I ordered the flashlight on Aliexpress. Waiting for delivery. Flashlight is simple to use rotating ring and is also suitable as a gift for the older person. You can see exactly what mode is set. It may not be easy for the elderly to select modes by pressing a button. I turn the ring and it’s done.