The low-profile Switch Rail Weaponlight from Princeton Tec provides the light that operators need for navigation, stealth structure searches, and breaching operations. Fitted with infrared and red LEDs, the 10-lumen light fits on a Picatinny rail and is controlled by a simple push-button switch. Runtime on two 2032 batteries is 36 hours. The Switch rail is rated IPX7 waterproof, submersible to 3.3', for performance under less-than-ideal conditions.

10-Lumen Low-Signature Task Light    Mounts on Picatinny Rail    Single Push-Button Switch    Runtime 36 Hours    IPX7 Waterproof    Weighs Under 1 Ounce

• One-button access to infrared and red LEDs
• 10-Lumen output for navigation, signature reduction, stealth structure search, and breaching operations
• Mounts on Picatinny rail
• Comes with ARC, MOLLE, and helmet mounting adapters
• IPX7 waterproof and submersible
• Uses two 2032 batteries, runtime 36 hours

Related Questions and Answers

Q: 1. Will this rail accommodate Manfrotto's 200PL quick release plates?

A: No, the 200PL quick release plate does not fit.

Q: 2. Does it have to be mounted on a tripod or can it be placed and lay flat on a table top for use?

A: It can be used on a flat table top but will likely topple when the camera is too far forward. A tripod or table-top tripod would be best to keep it grounded and hold it in place, but depending on how you plan on using it, that might be optional.

Q: 3. Can it be used with the Canon MP-E 65mm f/2.8 1-5x lens mounted on a 6D?

A: Yes it can

Q: 4. does the lower rail have a groove compatible with attaching to an Arca Swiss clamp?

A: Yes the lower rail on the Kirk FR3 Focusing Rail with Bag is Arca Swiss style. So, it can attach to an Arca Swiss style clamp.

Q: 5. will this fit a 410 jr. gear head?

A: It will work with a 1/4-20, or 3/8-16 thread mounting screw on the underside, and it comes with an Arca-Swiss type plate on the top with a 1/4-20 threaded mounting screw. This should adapt to most any standard mounting setup.

Q: 6. Is this rail able to be mounted in an arca-swiss style panning clamp (like the Really Right Stuff PCL-1)? That is, I can mount this rail on an arca-swiss style panning clamp and then mount my DSLR to the rail -also with an arca-swiss style L-bracket? Thanks.

A: Short answer, yes. That's pretty much how I use mine - the rail is profiled like an Arca plate so goes on the tripod mount then the camera L-plate mounts on the end of the rail. Depending on your lens, I'd consider a longer rail than this one. I ummmed and aaaahed about this and a 200mm rail and should have got the longer one. When I align my lens nodal point with the tripod, this rail only sits about 3/4 of the way through the Arca bracket on the tripod. It's very dependent on lens, of course, so worth checking where the nodal point on your lens is first prior to buying.

Q: 7. Difference between this and the FR2?

A: The FR3 unlike the FR2 has built in safety stops on the upper quick release carriage.

Q: 8. What is the stage travel distance per revolution?

A: (63 mm of stage travel) / (15.75 revolutions) = 4 (mm/rev) in the main-axis direction.(31 mm of stage travel) / (7.75 revolutions) = 4 (mm/rev) in the X-axis direction.

Q: 9. Will this work with a Manfrotto MV500AH Video head? I want to screw this one to the included Manfrotto PLONG plate, so that I can have an Arca Clamp to attach my cameras. Please advise

A: If you're screwing this into a PLONG plate, it will work. If you want an integrated 501-style with an arca-clamp, try this ProMediaGear plates: https://bhpho.to/3ryJpFM (501-short) https://bhpho.to/3BDT5U5 (501-long)

Q: 10. Under the Nodal Rail, there are two 1/4-20 Threaded holes. Can someone measure me the distance from center to center of these holes?

A: The distance from the threading under the spirit level to the threading in middle of the clamp on the Desmond DNR-120 Nodal Rail (120mm) is approximately 80mm.