Cloud Defensive REIN 1.0 Micro Weapon Light – 18350


Flat Dark Earth (FDE)
Clear Anodized
Bazooka Green
Swatch image Multicam Black

Product Description

REIN is fully compatible with any platform that allows for traditional picatinny, M-LOK, or KeyMod scout-style light mounts.
The optional remote switch for the REIN is only compatible with the REIN itself. No reverse compatibility for other light manufactures exists.


  • Precision machined from Certified 6061-T6 aluminum.
  • Type III Anodized to MIL STD. “Hard coat”.


  • A USA-made, state-of-the-art electrical system using the best components that money can buy. That gives us the output, efficiency and run-time that makes REIN the class leader.
  • Uses a single 18350 battery. No CR123 batteries allowed. Use of CR123 batteries VOIDS your warranty. We supply an Orbtronic 1200mah 18350 with the REIN Micro. The battery has strong output with a shorter run-time of 40 minutes. Please note that unlike its peers, REIN Micro will produce useable light for at least 3 straight hours.
  • Accepts ALL protected and unprotected 18350 batteries. Accepts both button-top and flat-top batteries. NOTE: Various battery sizes will require use of the provided Battery Jack feature.
  • Run-time at 100% power is industry-leading.


  • Modular 3-piece design makes the REIN upgradeable over time.
  • Exceeds well over 55,000 Candela.
  • 1,300 Lumens of output.
  • IPX-8 waterproof rating. Fully submersible to 100 ft for 24 hours. Remote switch included.
  • Run-time standard per ANSI/PLATO-FL1 = 40 minutes. The amount of time until the light reaches 10% of its original output.
  • Proprietary Field-Serviceable Lens System. The end-user can now replace the glass lens themselves. The glass on the REIN is 3mm thick, which is the thickest in the industry. It can take multiple hits from 5.56mm Simuntion rounds.
  • S7 Tool Steel bezel ring. Heat-treated to 53 Rockwell. Your light is now an impact tool.
  • Patented Battery Jack feature. This allows you to properly tension the battery inside the system to avoid battery bounce. This lengthens the life of your system and increased reliability substantially.
  • The patented tail-cap cartridge is easily replaceable and allows for multiple configurations without removing the tail of the light.
  • REIN comes standard with a push-button-only configuration. Located in the tail cap, the switch offers both momentary-on and constant-on capability.
  • Patented remote switch (optional). Offers both momentary and constant-on functionality. The remote switch is electrically isolated from the push-button switch located on the tail cap. If your remote switch suffers a catastrophic failure, your REIN still works via the tail cap button.
  • The optional remote switch is housed in a 3rd Generation Light Control System. Available only for the REIN. It offers unprecedented cable management possibilities never before available even with prior generation LCS units. The remote switch is fully submersible and fully potted.
  • The optional remote switch utilizes a cable exit from the tail cap that is perpendicular to the bore axis. This allows your cable to be protected from potential snags and impact.
  • The optional remote switch wire is over-molded into the tail cap cartridge. And the tail cap body allows for the user to adjust the position of the tail cap based on user requirement or preference.
  • The optional remote switch cable is 5” long.
  • Shockproof. Dustproof.
  • Lifetime Warranty – with only a few exceptions.
  • Made in the USA.


  • CANDELA 55,000
  • LUMENS 1,300
  • LENGTH 4.91″
  • WEIGHT without battery 4.95 oz.
  • WEIGHT with battery 5.75 oz.
  • BATTERY 18350




Technical Information







Mounting Platform



Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit

Customer Reviews

Based on 5 reviews
Best long gun light

For operators to operate the shit out of darkness. Buy one and Larp the shit out of your mom's basement

Not satisfied

I ordered the FDE and apparently I received one of the early production REINs from a couple years ago where the FDE is more like a reddish bronze color.

Charles Z.
It's okay (really, really great)

It's one of the best lights available, tough as nails, bright at distance, and best of all, cheaper than any surefire setup, which are solid lights, but they just don't have the performance of the REIN, or any Modlite. The newest surefire has 1500 lumens but only roughly 13k candela..? Surefire got too comfortable being top dog, while the underdogs (cloud defensive) completely destroyed them.

Awesome Light!

Bought the Rein Micro for my Scorpion Evo, and couldn’t be happier. Size is perfect, and the switch with cable management is brilliant. The light is one of the brightest on the market, and is the perfect compliment to any home defense rifle/SBR.

Joseph D.
Definitely dope

They shipped it out super quickly. Now I can boop boop while I larp in my garage waiting for ammo prices to go down. Tell you what though, I can fuckin see with this light like I never could before. I can see more of these lights on my systems