Sofirn SC21 mini

[Lumen9000]

@trakcon

@Lumen9000

Anyone tried to open the SC21 up? mine just stopped working and its not from the battery side. The led and copper plate seems fine. Must be driver/ charging are. Does not want to be unscrewed. starting to wonder if they have glued it in place…

I opened one a while back. There was a huge amount of red loctite. I had to sandwich it between two pieces of wood at the flat part of the cooling fins, and then use locking pliers with leather on the bezel.

The top is opened, but i have problems with taking out the driver, the PCB that meets the batterie’s positive end. I believe after some research that they glue them in place… Pure ultra violence in small scale will commence!

[trakcon]

@Lumen9000

@trakcon

@Lumen9000

Anyone tried to open the SC21 up? mine just stopped working and its not from the battery side. The led and copper plate seems fine. Must be driver/ charging are. Does not want to be unscrewed. starting to wonder if they have glued it in place…

I opened one a while back. There was a huge amount of red loctite. I had to sandwich it between two pieces of wood at the flat part of the cooling fins, and then use locking pliers with leather on the bezel.

The top is opened, but i have problems with taking out the driver, the PCB that meets the batterie’s positive end. A believe after some research that they glue them in place… Pure ultra violence in small scale will commence!

That sounds familiar, too.

[d_t_a]

@TexasToasted

Just tested my SC21 using a benchtop power supply set to 4.20VDC and a Tektronix TX3 DMM wired inline.
Light off= 41uA.
Light in lockout= 60uA.
I watched it for a while and the current stayed steady, no pulses or change in current.
I’m topping up the battery now and I will leave it in lock out for a week to see what happens.

Yours has low idle/quiescent current… I wonder if yours may be from a different batch?
(my SC21 were ordered around last week of September from Sofirn/AliExpress, and they arrived around last week of October).

I have the SC21 with 5000k, 4000k, 2700k and all of them have high parasitic drain when in Lock-out mode.

[mortuus]

@d_t_a

@TexasToasted

Just tested my SC21 using a benchtop power supply set to 4.20VDC and a Tektronix TX3 DMM wired inline.
Light off= 41uA.
Light in lockout= 60uA.
I watched it for a while and the current stayed steady, no pulses or change in current.
I’m topping up the battery now and I will leave it in lock out for a week to see what happens.

Yours has low idle/quiescent current… I wonder if yours may be from a different batch?
(my SC21 were ordered around last week of September from Sofirn/AliExpress, and they arrived around last week of October).

I have the SC21 with 5000k, 4000k, 2700k and all of them have high parasitic drain when in Lock-out mode.

how is the 2700k tint ? dta ?

[Lumen9000]

@mortuus

@d_t_a

@TexasToasted

Just tested my SC21 using a benchtop power supply set to 4.20VDC and a Tektronix TX3 DMM wired inline.
Light off= 41uA.
Light in lockout= 60uA.
I watched it for a while and the current stayed steady, no pulses or change in current.
I’m topping up the battery now and I will leave it in lock out for a week to see what happens.

Yours has low idle/quiescent current… I wonder if yours may be from a different batch?
(my SC21 were ordered around last week of September from Sofirn/AliExpress, and they arrived around last week of October).

I have the SC21 with 5000k, 4000k, 2700k and all of them have high parasitic drain when in Lock-out mode.

how is the 2700k tint ? dta ?

My favourite, but i’m kind of a sucker for the old incadescent bulb-light kind of thing.

[d_t_a]

1)

Left:Sofirn SC21 (LH351D 2700k)

Right: Sofirn SC21 (LH351D 4000k)

(at the end part of the video, the 5000k is also shown)

(pardon my old digicam doesn't seem to focus warm color temperature and relatively low brightness that well, so there are parts of the video that gets defocused)

Sofirn SC21 (LH351D 2700k) vs Sofirn SC21 (LH351D 4000k) beam compare

2) (just very recently, someone was able to order for me from Amazon the Lee green filter, which I have been wanting to try for some years now, this is my first attempt to try it on the flashlight)

Left: Sofirn SC21 (LH351D 5000k, with minus 1/4 green Lee filter)

Right: Sofirn SC21 (LH351D 5000k, stock)

(comment: there is a noticeable slight drop in brightness when using the minus 1/4 green Lee filter, probably something like 10% or so drop in brightness

BUT, the beam now looks much nicer)

Sofirn SC21 (LH351D 5000k with minus 1/4 green Lee filter) vs SC21 (LH351D 5000k stock)

[mortuus]

great videos thanks.

[TexasToasted]

2 week electronic lockout battery drain test-
Nov 14 battery voltage (freshy charged) 4.145V
Nov 28 battery voltage 4.097V.
My light is not draining the battery when in electronic lockout.

[Firelight2]

I was able to remove the magnet in my SC21.

• I removed the spring by compressing the triangle so I could lift it out.
• The magnet was lightly glued in place, but there was a small gap around the edges of its cavity. I inserted a small screwdriver into this gap and then lightly hammered the back of the screwdriver with the side of a pliers.
• This worked quite well. The hammering broke the glue and shifted the magnet sideways in the cavity. The magnet fell right out after that.

[icpart]

What is that SC21 Pro mini? Very strange looking listing in AE store.
https://www.aliexpress.com/item/1005004148836770.html?spm=a2g0o.productlist.0.0.f64233a5i9zJvK&algo_pvid=f20e71d6-c31e-406c-9ad4-49f7a376f628&algo_exp_id=f20e71d6-c31e-406c-9ad4-49f7a376f628-0&pdp_ext_f={"sku_id"%3A"12000028198712001"}&pdp_pi=–1%3B28.79%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch

[jon_slider]

@icpart

What is that SC21 Pro mini?

Pro = Anduril 2.0

good find :+1:

[icpart]

Yes I know that but description is wrong led emitter choices are black, green and blue and body color is 5000k I thinking to buy SC10 Pro but if that’s SC21 have the same electronics I maybe will buy SC21 Pro, also my current EDC is SC21.

[jon_slider]

@icpart

I thinking to buy SC10 Pro but if that’s SC21 have the same electronics I maybe will buy SC21 Pro

I am asking myself the same questions

the advantage of SP10 Pro is that it is the only Anduril light that works with AA batteries, and it is thinner than SC21 Pro

the advantage of the SC21 Pro is that it is the smallest Anduril light plus has built in Charging and battery indicator light on the switch, and it is shorter than SP10 Pro.

Im leaning towards SC21 Pro, because of charging convenience as a gift light to a muggle (thats my excuse anyway). My prepurchase consideration is that Im not sure yet if it has the same low firefly modes as the SP10 Pro, which are the lowest Ive ever seen in an Anduril light.

[icpart]

In SC21Pro we will lose the big advantage of SC21 in that smaller size. It’s use buck driver which is important for that small battery to have longer running times. Also I think the new version of SC21 will be just another simple FET based driver without stabilization.

[Lightbringer]

Is the ’pro still gonna be egg-weight, or heavier?

[Verodin]

@icpart

In SC21Pro we will lose the big advantage of SC21 in that smaller size. It’s use buck driver which is important for that small battery to have longer running times. Also I think the new version of SC21 will be just another simple FET based driver without stabilization.

I ordered one and can do some non destructive tests once it arrives. But I probably won’t pop the driver out, at least not on day 1.

[icpart]

@Verodin

@icpart

In SC21Pro we will lose the big advantage of SC21 in that smaller size. It’s use buck driver which is important for that small battery to have longer running times. Also I think the new version of SC21 will be just another simple FET based driver without stabilization.

I ordered one and can do some non destructive tests once it arrives. But I probably won’t pop the driver out, at least not on day 1.

You need to make just ruuning graph with ceilingbounce or similar app and we can view if is there some sort of output stabilization or just FET.

[Sidney_Stratton]

I always thought Anduril was a FET driver – barring the SP10Pro.
As for SC21 having a buck driver, I’m surprised.

@icpart

In SC21Pro we will lose the big advantage of SC21 in that smaller size. It’s use buck driver which is important for that small battery to have longer running times. Also I think the new version of SC21 will be just another simple FET based driver without stabilization.

I’ll have to run some tests, maybe take it apart.

[Verodin]

@icpart

@Verodin

@icpart

In SC21Pro we will lose the big advantage of SC21 in that smaller size. It’s use buck driver which is important for that small battery to have longer running times. Also I think the new version of SC21 will be just another simple FET based driver without stabilization.

I ordered one and can do some non destructive tests once it arrives. But I probably won’t pop the driver out, at least not on day 1.

You need to make just ruuning graph with ceilingbounce or similar app and we can view if is there some sort of output stabilization or just FET.

Any idea if you can save runtime graphs with ceilingbounce? I can specify an output name, but nothing is outputted. Can always take a screenshot, but then the graph will be low resolution. Or does it save a CSV somewhere?

Edit: nevermind, found it. It’s on the SD card, it just doesn’t show up with the normal photos/pictures.

[icpart]

I really like ceilingbounce app but it doesn’t work properly on my new Mi 11i phone. I think there is problem with Android 12 or high resolution light sensor. So for that I used my old phone LG V30 to take runtime graphs.