Wowtac BSS v4 Flashlight Review

2 Comments / Cree XHP35 HI, Flashlight, Flashlights, On-Board, Pocket

​Wowtac BSS v4 Flashlight Review​

Wowtac has released BSS v4 flashlight.  This is an 18650 light with built-in charging and is offers a complete package.  Read on!

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Official Specs and Features

Here’s a link to the Wowtac BSS v4 Flashlight product page.

Versions

Of “v4” there are two options – CW and NW (seen here).  Of course, there are previous iterations of this light as well – I reviewed the BSS v3 over two years ago!

Price

This light retails for $59.99 and is available now.  Wowtac did give me a 10% off code, though:  10V4zeroAir, from July 15 to Sep. 30.
WOWTAC BSS V4 Tactical flashlight 1785 Lumens with a bezel (referral link).

They also asked me to include this information:

WOWTAC Amazon flagship store: https://www.amazon.com/wowtac

WOWTAC Official website: http://wowtac.com/

FB WOWTAC：https://www.facebook.com/wowtacflashlights

WOWTAC FB Weekly Tuesday Giveaway: Follow WOWTAC Facebook @wowtacflashlights & Join group, attend every Tuesday giveaways and get more promotions. Win free flashlights here: https://www.facebook.com/wowtacflashlights

Short Review

Overall this is a solid value light.  If the loadout suits your needs (as I’m sure it does for many Black Scout Survival followers) then it’s a good choice.

Long Review

The Big Table

^ Measurement disclaimer:  Testing flashlights is my hobby. I use hobbyist-level equipment for testing, including some I made myself. Try not to get buried in the details of manufacturer specifications versus measurements recorded here; A certain amount of difference (say, 10 or 15%) is perfectly reasonable.

What’s Included

• Wowtac BSS v4 Flashlight
• Wowtac 3100mAh 18650
• Pocket clip
• Nylon pouch
• Replacement switch cover
• Replacement charge port cover
• Spare o-rings (2)
• Lanyard
• Red lens to replace crenelated bezel
• Manual etc

Package and Manual

Build Quality and Disassembly

The build quality of the BSS v4 is typical of Wowtac.  It’s good enough considering the price.  There aren’t any specific points that I’d say could be better.

The bezel is striking.  It’s easy to remove, and the light works fine without it (in fact all my testing was without the bezel.)

Nice NW emitter in there!

Black Scout Survival logo is on the head – it feels laser-etched instead of silk-screened or anything like that.

This design on the tailcap does effectively nothing to help with unscrewing the tailcap for cell swaps.

The replacement non-crenelated bezel looks to have just a bunch of AR coating or whatever, but it is actually a red lens.

The threads on the tail are square-cut, fairly short, and unanodized.

The head end has a brass button.  The tailcap has a big thick double spring.

There’s an inner tube also.

And her’s Ratus from PhotonPhreaks!  Still available!

Size and Comps

Dimension: 146.5mm x 28mm x 25.4mm
Weight: 98g (NOT included the battery weight)

I measure it at 99g without cell and that’s with the strike bezel (9g by itself).  The cell pushes total weight to 147g.

If a light will headstand, I’ll show it here (usually the third photo).

Here’s the test light with the venerable Convoy S2+.  Mine’s a custom “baked” edition Nichia 219b triple.  A very nice 18650 light.

And here’s the light beside my custom engraved TorchLAB BOSS 35, an 18350 light.  I reviewed the aluminum version of that light in both 35 and 70 formats.

Retention and Carry

A nylon pouch is included.  The light will fit in either orientation, but there are no holes in either end.  So the light must be removed for use.

Also included is a friction fit pocket clip, which goes only one direction, and only on the tail end of the light.  So bezel down carry only.

The included lanyard fits in the tailcap loop.

Power and Runtime

The Wowtac BSS v4 runs on a single 18650 lithium-ion cell.  A proper cell is included – 3100mAh button top.  However, even the shortest flat top unprotected cell seems to work just fine in the light.

Here are a couple of runtimes.  First is Turbo, which is much lower than the claimed 1785 lumens.  That number is for the CW version of course, which will almost always churn out more lumens.  So we expect a bit lower than 1785 – Wowtac suspected a 10% loss, but I experience much more than 10%.  Still, 1300 lumens isn’t bad output.  The stepdown is at 30s, and fairly dramatic.  But once it levels out, around 500 lumens for over an hour.  The bit at the end isn’t me fiddling with the light – the output just bounces like this toward the lower voltage of the cell.

High is much more well regulated, though the output does step down quite dramatically after a minute or so.

Charging

The BSS v4 has onboard charging too, in the form of a micro-USB port in the head.  This port is opposite the e-switch.

Charging in both cases was…. weird.  The first charge test had big dropouts and I had to go back and notice that it wasn’t actually charging, and sort of restart it.  The second test looked ok but then I see the big bounces from “normal” to around 0.5A.  In both cases, the cell charged fully, and in both cases, things looked pretty normal.  So I don’t have an explanation for this, but the messing about does cause charging to take much longer than it would if it was a steady 1A the whole CC phase.

Modes and Currents

Pulse Width Modulation

No PWM is seen on any mode.

Here you can see a “baseline” – a chart with almost no light hitting the sensor.

Then there’s the Ultrafire WF-602C flashlight, which has some of the worst PWM I’ve seen. It’s so bad that I used a post about it to explain PWM! Here are multiple timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make comparing this “worst” PWM light to the test light easier. That post also explains why I didn’t test the WF-602C at the usual 50us scale.

User Interface and Operation

There are two switches on the BSS v4.  First is the mechanical tail switch.

Next is the indicating e-switch on the head.  Note that this one has a metal cover.  (Metal, or plastic, either way, it’s not rubber and soft.)

Here’s a user interface table!

LED and Beam

This light offers a Cree XHP35 HI and a smooth deep reflector.  I have the NW option, but also available is a CW, which will pump out more overall output.  XHP35 HI is one of my favorites, and it’s a good choice for this light, too.

These beamshots always have the following settings:  f8, ISO100, 0.3s shutter, and manual 5000K exposure. These photos are taken at floor level, and the beam hits the ceiling around 9 feet away.

Tint vs BLF-348 (KillzoneFlashlights.com 219b version) (affiliate link)

I keep the test flashlight on the left and the BLF-348 reference flashlight on the right.

I compare everything to the KillzoneFlashlights.com 219b BLF-348 because it’s inexpensive and has the best tint!

Conclusion

What I like

• Complete package
• Good output
• Simple UI
• Dual switch UI

What I don’t like

• Fast stepdowns
• Crenelated bezel is super aggressive

Notes

• This light was provided by Wowtac for review. I was not paid to write this review.
• This content originally appeared at zeroair.org.  Please visit there for the best experience!
• For flashlight-related patches, stickers, and gear, head over to PhotonPhreaks.com!
• Use my amazon.com referral link if you’re willing to help support making more reviews like this one!
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