Thyrm CLENS Protector For Modlite, Surefire, Streamlight and Other Lights
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Thyrm CLENS Protector For Modlite, Surefire, Streamlight and Other Lights


(14 customer reviews)

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Big Tex Outdoors



Lights only work well when their lenses are clean.  CLENS provides an easy way to protect lenses during extended shooting sessions.  Just like goggle tear-offs for off-road riding, just remove the dirty CLENS to return your light to its optimal brightness

CLENS (pronounced “cleanse”) is a set of heat-resistant clear polymer circles that are cut to fit on a wide range of flashlight and weapon-light lenses. CLENS protects the lens from carbon and other debris that can build up from the use of lights during firearms training. CLENS can be removed to quickly clean a light, rather than having to apply Vaseline before shooting, replace a lens, or risk abrasion with lens cleaners.

Below is a CLENS size chart, showing the four models of CLENS sheets and the corresponding count and sizes of CLENS on each sheet.


CLENS’ mild adhesive backing has a higher affinity for polymer than glass. This makes it easy to attach and position, without leaving adhesive on clean glass. However, adhesive may stick to a dirty or damaged lens; in this case, touching the sticky side of CLENS to any residual adhesive should remove it from the lens.

CLENS was made in collaboration with Aaron Cowan of Sage Dynamics / Sage Instruments.

* Follow all firearm safety rules at all times. Detach lights from firearms prior to installing, removing, cleaning, or replacing the CLENS.

Designed and manufactured in the USA.

Additional information

Weight .2 oz
Dimensions .5 × 5 × .5 in

CLENS-18L (Fury, HL-X etc), CLENS-18M (Modlite. TLR, HL etc), CLENS-18S (X300U, Scout etc), CLENS-31 (mix)

14 reviews for Thyrm CLENS Protector For Modlite, Surefire, Streamlight and Other Lights

  1. Travis Fite (verified owner)

    I hate cleaning my WML lens. The CLENS makes it easier to avoid having to clean them or having to prep the surface with a lumen stealing coating. I’m honestly kinda pissed I didn’t come up with the idea. I picked up the X300 and Scout sheet. The Clens is easy to apply and so far easy to remove. Shipping was ridiculously fast and protected this sheet of grown up stickers well. If you run a WML buy this product

  2. Brendon Bennett (verified owner)

    Love these! Clean lens in seconds, also last thyrm product on big Tex I didn’t buy

  3. drumsetboy82 (verified owner)

    Great product, but not compatible with Modlite heads.

  4. johnkim.tfa (verified owner)

    Great Secure lock up for surefire scout. Super Fast shipping

  5. Hunter Crumley (verified owner)

    An ounce of prevention….The CLENS is now my go to for keeping my WMLs clean. As long as I remember to install one before range sessions and classes, they do their part. They stick well and don’t come off until I want them to. They’re exactly as advertised.

  6. eric_hernandez3 (verified owner)

    best thing to keep my flash lights scratch and carbon free

  7. Daniel H (verified owner)

    Great product to protect the lens of expensive weapon lights. I use them on my Modlites and my Surefires.

  8. smithluckk (verified owner)

    These are a savior from having to constantly clean your light. I put them on my modlite when I go to the range and it does wonders. Thank you Big Tex!

  9. jorgeojeda2000 (verified owner)

    works great for heavy firing routines

  10. Justin (verified owner)

    A necessity for any WML

  11. Cory (verified owner)

    Much easier solution for mitigation buildup on your WML

  12. Jacob Brandon (verified owner)

    Such a simple but awesome tool. Get some!

  13. D_H (verified owner)

    Doesn’t get any easier than CLENS for keeping your WML clean. Just make sure to line it up correctly before smoothing it out over the lense.

  14. Ben H (verified owner)

    An easy way to keep your lens clean during training.

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