FOURSEVENS Maelstrom MMU 800 Lumen 1 x 26650 SST-90 LED Flashlight

FOURSEVENS Maelstrom MMU 800 Lumen 1 x 26650 SST-90 LED Flashlight

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FOURSEVENS Maelstrom MMU 800 Lumen 1 x 26650 SST-90 LED Flashlight

Regular Price: $155.00

Special Price $59.95

Out of stock


Our most powerful lights, the rugged Maelstrom tactical series is designed to perform in the harshest environments. Reliable and versatile, these lights are the result of years of research and input from military and law enforcement personnel. Available in a variety of tactical interfaces and high-output lithium battery types. With outputs ranging from 350 to a staggering 1200 lumens, these lights will show the dark who's boss.


Current Regulation
Thermal Regulation
Smart Circuit for Rechargeable Batteries
Reverse-Polarity Protection


Dimensions Length: 5.6 inches/Body diameter: 1.3 inches/Head diameter: 1.8 inches/Weight (without batteries): 5.6 oz
LED Emitter Luminus SST-90
Voltage range 3V-4.2V
Spot Beam Angle: 11.8°/Diameter at 3mm: 620mm
Flood Beam Angle: 84.9?/Diameter at 3mm: 5.5M
Brightness Levels Low: 120 lumens, 13 hrs / High: 800 lumens, 1.5 hrs
Special Modes NA
Reflector Smooth
Body Material Type-III hard-anodized aircraft-grade aluminum
Bezel Material Type-III hard-anodized aluminum strike-bezel
Lens Material Hardened glass lens, sapphire coating, antireflective coating
Included Accessories Spare-o-rings, holster (Battery and Battery Charger NOT included)

Additional Information

Model MMU-AA
SKU foursevens_maelstrom_mmu
Manufacturer FOURSEVENS
Video Review No
Color Blue
Beacon No
Body Color Black
Compatible Batteries 1 x 26650
Mode Changing Method No
Holster Included Yes
Pocket Clip No
Crenulated Bezel No
Infinite Ouput Adjustment No
LED Type Luminus SST-90
LED Tint Cool
Secondary LED Color No
Max Lumens No
Min Lumens No
Beam Distance (Meters) No
Modes No
Strobe No
Switch Type Forward
Programmable No
Body Material Aluminum
Weight grams No
Weight oz No
Length Inches No
Length mm No
Body Diameter Inches No
Body Diameter mm No
Head Diameter Inches No
Head Diameter mm No


Customer Reviews 2 item(s)

Nice basic light that works well with A123 26650
I bought this last year when it still had the old S12 name.
The ability to use 26650 batteries and having the big SST-90 LED, was the selling point for me. It puts a ton of light out and a very good flood thanks to that big power hungry SST-90. The interface to access low and high beam is stupid easy. I've used it as bike light on my handle bar to night riding on the single track mtb trails. Used it for roadside emergency situations, anything that needs a flood light basically.
The ability to use A123 26650 cells is just awesome. Those cells can be abused with no fear of a big fire. I have a long history with those cells and still use them in my high amp toys. So since the capacity of the A123 is between 2300-2500 mah when new, I have a few on hand while riding the trails. However I fully charge A123's in 5 minutes, making the Maelstrom MMU the most used light out of my small collection of flashlights.
Review by Romano / (Posted on 3/27/2013)
Not Good
This is the S12 but now FOURSEVENS Is now calling it the MMU? I purchased this from another site because GOING GEAR was sold out at the time.The reflector was not seated with the centering disk and emitter.I tried to correct this without it getting to involved to no avail.Sent it back and received a replacement and the twist cap switch would function on high only?Got a refund.And by the way not impressed with output of this and the 26650 battery is basically a proprietary battery.I purchased this because of what I had viewed in videos but this thing emits a very blue dark light,if that makes any sense.The U.I. is bad to me and I know others have praised this light but I in no way would ever recommend this piece of junk.
Review by brian / (Posted on 7/29/2012)