The Maelstrom S18 is a veritable hand-held spotlight that features
4Sevens' unique thermal regulation and a blistering high output of 1200 OTF lumens.
The S18 is unlike any flashlight out there, utilizing innovative
design technology to provide the versatility and dependability you've
come to trust in a 4Sevens flashlight.
Current Regulation: Current regulation means that
the S18 intelligently controls the power being drawn from your
batteries, giving you consistent output while fully using every last
drop of energy available. Current regulation provides dependable
outputs and runtimes while eliminating needless battery waste.
Thermal Regulation: The S18 features our unique
thermal regulation. This means it can take serious abuse and be exposed
to harsh conditions, but it will automatically control its output to
protect its own guts. That means you don't worry about your light - you
just use it.
SST-90 LED: We only use the absolute latest
cutting-edge LED technology in our flashlights, and the Maelstrom S18 is
no exception. It features the "SST-90" LED, a luminous giant of
efficiency and output, providing 1200 OTF lumens on high mode.
Smart Circuit for Rechargeable Batteries: Many
flashlights are able to use standard single-use 3-volt CR123A batteries,
but few can use the more powerful, rechargeable 3.7-volt RCR123A
batteries without causing permanent internal damage. The Maelstrom S18
is one of those few - it runs flawlessly even when using six
rechargeable 3.7-volt RCR123A batteries.
Reverse-Polarity Protection: The S18's battery
carrier provides reverse-polarity protection, so even if you
accidentally put the batteries in reverse, nothing will be damaged. So
even if you're swapping batteries in the dark, you've peace of mind that
you simply can't hurt the S18.
Operating the Maelstrom S18 flashlight is intuitively simple. First
ensure that all six batteries are installed correctly in the battery
handle**. To access the battery handle, unscrew the tailcap in front of
the red o-ring, where the five mode icons are engraved. The battery
handle is permanently attached to the tailcap, so please remove it
Once you have installed the batteries and tightened the tailcap,
press the metal button on the back until it clicks and the light will
turn on. You can also press the button lightly for momentary-on. To
change modes, simply rotate the back of the tailcap to align the
engraved arrow with the icon of the mode you want.
** Note: Please always reload the Maelstrom S18 with brand
new CR123As. Never mix-and-match CR123As with different brands or with
unknown or different remaining capacities. We recommend that you use
high quality 4Sevens CR123A cells in the S18. If you are using RCR123A
(rechargeables), please ensure they are all the same brand/type and are
all fully charged.