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Fenix AER-04 Tactical Remote Switch

$27.00 $19.95

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The Fenix AER-04 tactical remote switch is the perfect accessory for your rail mounted flashlight. This remote switch allow you quickly select momentary on of the brightest level with the pressure pad or constant on with the tactical switch. Easily attach your remote switch either by cable ties or the hook and loop backer (both included). IP68 rated dustproof and waterproof underwater to 2 meters.

This remote switch only works with the following current Fenix Flashlight Models: HT18, HT30R, PD36R PRO, PD36 TAC, TK16 V2.0, TK20R V2.0, TK20R UE, TK22 TAC, TK22 UE, and TK30 only. Not compatible with the PD36R.

*Momentary on activates High.  If you would like momentary on to activate strobe, please see the AER-05 Tactical Remote Switch


SKU: AER-04N/ABarcode: 6942870307671N/A

For commercial orders and large purchases, contact us at (888) 775-9996 x6 or GET A QUOTE

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More Information

  • Tactical round switch for constant-on; pressure switch for momentary on (high)
  • Tail adapter is made from T6-grade aluminum, type III hard-anodized anti-abrasive finish
  • Cable made from durable PU material
  • IP68 rated dustproof and waterproof underwater to 2m.

Cable: 9” (23cm) long and made of durable PU material

Tail Adapter: Mode of  high-strength A6061-T6 aluminum

Compatible: Currently compatible with the HT18, HT30R, PD36R PRO, PD36 TAC, TK16 V2.0, RK20R V2.0, TK20R V2.0. TK20R UE, TK22 TAC, TK22 UE, and TK30 only. Not compatible with the PD36R V2.0.


What is the difference between the AER-04 and the AER-05 Tactical Remote Switch?

  • The AER-05 allows for operation of two modes; Strobe and the High brightness level
  • The AER-04 only operates the High brightness level

Customer Reviews

Based on 6 reviews
Steve Graham
Quality Fenix Product

Works good. A little bulkier than most tape switches. *Call and verify operation with your lite* AER-04 did not function as intended. Had to order AER-05

Please note if needed in the future, the product pages for the lights do have a list of compatible accessories which will let you know which accessories, such as the remote switches will work with that particular light.

Josh D
usable once installed

the main issue I had with it was twisting it on and off the light to change the battery. Once zip tied to the rail the wire couldn't twist enough to remove. I have to loosen the light mount and twist the whole light with the tail cap stationary. Buttons fill great. No noise on the momentary and i love that there is actually a m-lok mounting option.

Robert Winsor
Good quality, ergonomics could be better

The part that screws to the flashlight is well made. The wire that is integrated into that part is a bit frustrating. It adds too much length. It would be nice if this could have a right-angle to it, or, better yet, be plug-in so that a person could choose right angle or straight (like with a 3.5mm connector or other barrel connector). The switch is overly bulky. Again, if it had a plug-in connector, a person could address some ergonomics. But as it is, it's decent, effective, and seemingly rugged but leaves a bit to be desired.

Kevin Whited


Corey Leach

Received with HT18 flashlights as a promotion. Thanks again

Tod Cox

Well made and durable

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