Sofirn SC21 Flashlight Review

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Sofirn SC21 Flashlight Review

Sofirn SC21 Flashlight Review


Official Specs and Features

Here’s a link to the Sofirn SC21 flashlight product page.  This is not a referral link.


There is just one version of the Sofirn SC21 flashlight.  It’s available as a kit, too though.


Without the cell (“SC21 Alone”) the package is $20.99.  With the cell (“SC21+Battery”) the package is $23.99.  If you make a purchase, I recommend grabbing the kit – the cell is worth the extra $3.  This light is available on Sofirn’s newly revamped website!

Short Review of the Sofirn SC21 Flashlight

For $21, the Sofirn SC21 flashlight is extremely hard to beat.  The size is great – despite nearly everyone forgetting about 16340 cells, they still make for great EDC flashlights.  Aside from size, this is a feature-packed light.  Indicating e-switch, tailcap magnet, USB-C charging, and a nice reflector….  There are a couple of things I don’t care for so much, though.

Long Review

The Big Table

Sofirn SC21 Flashlight
Emitter: Samsung LH351d (5000K, 90CRI)
Price in USD at publication time: $23.99 at
Cell: 1×16340 (standard, included)
Turbo Runtime Graph High Runtime Graph
LVP? Questionable
Switch Type: E-Switch
Quiescent Current (mA): 0.11
On-Board Charging? Yes
Charge Port Type: USB-C
Charge Graph
Power off Charge Port with cell: all modes
without cell: all modes except Turbo
Claimed Lumens (lm) 1000
Measured Lumens (at 30s) 769 (76.9% of claim)^
Candela per Lumen 5.8
Claimed Throw (m) 135
Candela (Calculated) in cd (at 30s) 236lux @ 4.504m = 4787cd
Throw (Calculated) (m) 138.4 (102.5% of claim)^
All my Sofirn reviews!

^ Measurement disclaimer:  I am an amateur flashlight reviewer.  I don’t have $10,000 or even $1,000 worth of testing equipment.  I test output and such in PVC tubes!!  Please consider claims within 10% of what I measure to be perfectly reasonable (accurate, even).

There's more at my site, including runtimes and all that other good stuff. Head over there if you're willing, and if the table above doesn't satisfy your need for data.  A bunch more photos, too!