Skilhunt M150v4 Luminus SFT25R Flashlight Review
The Skilhunt M150v4 Luminus SFT25R flashlight has high output, a cool white single emitter, uses Skilhunt’s great user interface, and has great throw! Read on!
Official Specs and Features
Here’s a referral link to the Skilhunt M150v4 Luminus SFT25R flashlight product page.
Versions
Of course, this is v4, so there are previous versions. I’ve tested some before (Skilhunt M150, Skilhunt M150 V3). Currently available are three emitters: Luminus SFT25R cool white, Nichia 519A (with three sub options), and TN Cool white. There are also four body colors: grey(seen here), green, black, and orange. You can get a kit without a cell or pick between two cells.
Price
As shown here, the Skilhunt M150v4 Luminus SFT25R flashlight sells for $47.50. Here’s a referral link to the Skilhunt M150v4 Luminus SFT25R flashlight product page.
What’s Included
- Skilhunt M150v4 Luminus SFT25R flashlight
- Skilhunt 800mAh 14500 cell
- Charge cable
- Lanyard
- Pocket clip
- Manual
- Nylon mesh pouch
- Spare o-rings (2)
Package and Manual
Build Quality and Disassembly
Skilhunt alights are usually well-built, and the M150v4 Luminus SFT25R is no exception. Maybe more importantly, the design language between this and the other Skilhunt lights is very consistent!
You may wonder what’s the difference in this Skilhunt M150v4 Luminus SFT25R flashlight and previous versions. There are some output changes, but most importantly, Skilhunt is using the new driver, which is more efficient.
The threads are square-cut and lubed an appropriate amount. A spring in the tailcap is also removable so that the magnet can be removed, too.
Size and Comps
Officially:
Length 84.0mm
Head diameter 21.0mm
Body diameter 18.0mm
Weight: 34 g (without battery)
Notably, those are the same dimensions as the M150V3.
If the flashlight can headstand, I’ll show it here. If it can tailstand, I’ll also show that here!
Here’s the test light with the venerable Convoy S2+. The version below is a custom laser-engraved Convoy S2+ host by GadgetConnections.com. I did a full post on an engraved orange host right here! Or go straight to GadgetConnections.com to buy your Convoy S2+ now!
Also in the photo above, my Standard Reference Material (SRM) flashlight is the Hanko Machine Works Trident, an 18350 light. While I have not reviewed or tested the Gunner Grip version seen here, I have tested a Hanko Machine Works Trident Total Tesseract in brass. I love the Trident, and it’s a striking contrast to the inexpensive Convoy S2+, another great SRM.
Retention and Carry
A pocket clip is included. It’s a pretty nice friction-fit two-way clip.
The pocket clip can be installed on the head or tail end. Each shoulder of the clip has a lanyard hole, too!
Also included is a lanyard, which attaches either through the pocket clip (less recommended) or the tailcap, where there is a hole for this express purpose.
The tailcap has a magnet, too, which is plenty strong to hold the light.
Above, you may note a new holder for my magnetic-tailcap items. That’s the Exceed Designs Hyzer Titanium Mini Hatchet D2 axe. The handle (as the name suggests) is titanium. But the blade is D2 steel and perfect for retaining magnetic tailcap flashlights! The Hyzer is available in a bunch of cerakote body colors as well as different thickness D2 heads.
Finally, there’s a mesh baggie for carrying the Skilhunt M150v4 Luminus SFT25R flashlight. This always ships separately, but I manage to stuff it into the box. I do believe it’s an included accessory, though.
Power and Runtime
The Skilhunt M150v4 Luminus SFT25R flashlight is sized for a 14500, and an appropriate cell is included. My package was the combo that includes this 800mAh 14500 seen below. It’s possible to buy two cells – I think the only (or at least “main”) difference is capacity.
The 14500 fits into the M150v4 with the positive terminal toward the head, as seen below.
In case you forget that bit of information, there’s a sticker just inside the tube to help.
Here are a number of runtime tests. I wouldn’t say there’s anything super surprising here. Output is very stable once a stepdown has happened, and low voltage protection is observed. There’s also a low voltage warning in the indicating e-switch. The switch also indicates the power level upon turning the M150V4 on. The indication it gives indicates the power level as follows:
Blue constant: 100-80% power
Blue blinking: 80-50% power
Red constant: 50-20% power
Red blinking: 20-0% power
The temperature lines in these charts are included as general context, not precise measurements. The values represent the range (min to max) during testing, but should not be taken as exact readings. Temperature sensors are attached however feasible and not always on the bezel or hottest spot (assuming that can even be clearly defined). Even with ideal placement, too many variables affect temperature to definitively state a specific max value.
Charging
The light also has built-in charging. There’s a connector opposite the switch. One end is a USB plug, and the other is a proprietary magnetic connector.
Charging on a 14500 cell commences at around 1A, which is plenty fast (maybe even a bit more than you’d want, long term) for an 800mAh 14500 cell. Charging looks very good.
Modes and Currents
| Mode | Mode Claimed Output (lm) | Claimed Runtime | Measured Lumens | Tailcap Amps (4.2V) |
|---|---|---|---|---|
| T1 | 620/270/190 | 1m/80m/5m | 693 (0s) 644 (30s) |
1.84 |
| T2 | 490/270/120 | 2m/80m/10m | 507 | 1.19 |
| H | 270/80 | 85m/20m | 281 | 0.53 |
| M1 | 80 | 340m | 79 | 0.11 |
| M2 | 25 | 18h | 25 | 0.02 |
| L1 | 2 | 130h | 2 | 6.3mA |
| L2 | 0.08 | / | 0.05 | 2.8mA |
Pulse Width Modulation
There’s no PWM on any mode. Yay!
Click here to 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’s a single switch on the Skilhunt M150v4 Luminus SFT25R flashlight. It’s a side e-switch, with an indicator in the center. It’s a big, secure switch with a very positive but quiet click. I very much like this switch. The switch seems unchanged from the previous iterations of the M-series. The user interface has been updated, but it is the same as other new Skilhunts. That’s a very good thing – it’s a great user interface.
The cutout for the switch in the head is the same size as the charge connector, and while it’s hard to distinguish between the two while holding the light, I found that it didn’t matter; I’ll just pinch the light with both spots between my fingers, and activate the light.
The user interface could be a bit daunting, but it’s very straightforward when you get used to it. It’s also very logical and provides access to low from off, which is as close to a requirement from a user interface as I have.
Here’s a user interface table!
| State | Action | Result |
|---|---|---|
| Off | Hold | Low (Memory between L1 and L2) |
| L1 or L2 | Hold | Iterate between L1 and L2 |
| Off | Click 4x | Lockout (Three blinks of the emitter to confirm) |
| Lockout | Click 4x | Unlock to Low group (memory, can be L1/L2) |
| Lockout | Click 2x | Iterate lockout indicator^ |
| Lockout | Hold | Momentary L2 |
| L1/L2 | Click | Off |
| L1/L2 | Click Release, Click and hold | M2 |
| Off | Click | On in “Main Group” (Mode memory M2/M1/H) |
| Main Group | Hold | Mode advance (M2 > M1 > H) |
| Main Group | Click | Off |
| Main Group, Off, or Low group | Click 2x | Turbo Group (T1/T2) |
| T1/T2 | Hold | Iterate between T1 (higher) and T2 (lower) output |
| T1/T2 | Click | Off |
| T1/T2 | Click 2x | Main Group (memory output) |
| Main Group, Off, or Low group | Click 3x | Strobe Group (with memory) |
| Strobe Group | Click 3x | Previous Group (T1/T2 or M2/M1/H, depending on how you accessed Strobe Group)^^ |
| Strobe Group | Hold | Strobe Advance (S1 > S2 > S3) |
| Strobe Group | Click | Off |
LED and Beam
This is the Skilhunt M150v4 Luminus SFT25R flashlight, so it has a Luminus SFT25R emitter. This emitter is a great choice for high output and a nice, tight beam. Other options are available for high CRI!
LED Color Report (CRI and CCT)
This Luminus SFT25R has a great beam profile with the reflector, and so is great for throw. The output is also great, but the tradeoff is CCT (cool white) and low CRI.
CCT (Correlated Color Temperature) refers to the measurement of the color appearance of light, expressed in Kelvins (K), which indicates whether the light is warm (yellowish) or cool (bluish). A lower CCT (below 3000K) is considered warm light, while a higher CCT (above 5000K) gives cooler, bluish light.
CRI (Color Rendering Index) is a measure of how accurately a light source renders colors in comparison to natural sunlight. Scored on a scale from 0 to 100, higher CRI values indicate that colors appear more true to life and vibrant, similar to how they would look under the sun.
Beamshots
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. These photos are taken around 18 inches from the door.
I compare everything to the KillzoneFlashlights.com 219b BLF-348 because it’s inexpensive and has the best tint!
Summary and Conclusion
I love the Skilhunt M150v4 Luminus SFT25R flashlight just as much as I love the EC150. They’re nearly the same light, with one being a triple emitter (floodier, higher output) and a single emitter with a reflector for better throw. They make an amazing combo. This light keeps Skilhunt’s standard proprietary magnetic charging, though, and the EC150’s USB-C is probably an upgrade. I love the Skilhunt user interface, particularly the click/hold from the lower modes to Low (of the main group). I’d like that to work to get to the lower Turbo mode, too! Finally, I love that it can run both 14500 lithium-ion and 1.5V, too! Despite this being cool white (and a positive Duv), I love the throwy beam!
The Big Table
| Skilhunt M150 V4 | |
|---|---|
| Emitter: | Luminus SFT25R (Cool white) |
| Price in USD at publication time: | $47.50 |
| Cell: | 1×14500 |
| Runtime Graphs | |
| LVP? | Yes |
| Switch Type: | E-Switch |
| Quiescent Current (mA): | ? |
| On-Board Charging? | Yes |
| Charge Port Type: | Proprietary magnetic |
| Charge Graph | |
| Power off Charge Port | |
| Claimed Lumens (lm) | 620 |
| Measured Lumens (at 30s) | 644 (103.9% of claim)^ |
| Candela per Lumen | 24.1 |
| Claimed Throw (m) | 230 |
| Candela (Calculated) in cd (at 30s) | 525lux @ 5.519m = 15991cd |
| Throw (Calculated) (m) | 252.9 (110% of claim)^ |
| Claimed CCT | 5700-6500 |
| Measured CCT Range (K) | 5600-6100 Kelvin |
| Item provided for review by: | Skilhunt |
| All my Skilhunt reviews! | |
^ 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 I like
- Great build quality
- Nice throw
- Emitter options
- High CRI (in the Nichia 519a version)
- Can run 1.5V and 4.2V cells
- Great user interface
- Available in orange body!
What I don’t like
- Price creep. I don’t think this should be priced as high as the EC150.
Notes
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