Description
The Unity Tactical SPARK is one of those little pieces of kit that punches way above its size. Roughly an inch and a half square and weighing well under an ounce, it started life as a safety light for workers on oil platforms before finding a home in the tactical world. Wrap it onto a helmet, plate carrier, chest rig, or pretty much anything else that needs to be seen, and you have a low-profile red marker that stays out of the way until you need it.
What Makes the SPARK Light Tick
Operation is about as simple as it gets. Press the center of the silicone housing to cycle through the output modes, and you get a positive tactile click each time so you can run it by feel even when it's mounted somewhere you can't see. The current version steps through constant-on high, constant-on low, blink, and off, giving you steady light for low-light work or a pulsing strobe when you want to grab attention. The whole thing is fully encapsulated in a flexible silicone body, so it shrugs off water and takes a beating without complaint.
Mounting the Red SPARK on Your Kit
The SPARK comes with a hook backing that sticks right to loop fields already on most helmets and carriers. Pair it with the separate SPARK Cage accessory and you can weave it onto webbing or snap it to metal surfaces thanks to built-in magnets, which opens up mounting on vehicles and hard gear. The red LED is a solid pick for active IFF, marking teammates, tagging equipment, or keeping tabs on a K9 in the dark.
Battery life is a genuine strong point here. The single-use cell delivers a 200-plus hour runtime, which is why these get issued in bulk to agencies and units. It's a disposable design meant to be used hard and swapped out, not fussed over.
Key Specifications
- Manufacturer: Unity Tactical
- Model: SPARK
- Manufacturer Part Number: SPK-RV1
- UPC: 810007880464
- LED Color: Red
- Mode Cycle: Constant High / Constant Low / Blink / Off
- Construction: Polymer / Silicone
- Mount Type: Velcro (Hook Backing)
- Water Resistance: Fully encapsulated, water and damage resistant
- Runtime: 200+ hours
- Dimensions: 1.625 in L x 1.625 in W x 0.5 in H
- Weight: 0.7 oz
- Product Type: Marker Light
What’s Included
- Unity Tactical SPARK Marker Light (Red)
- Adhesive-backed hook-and-loop section for mounting to hard surfaces
Frequently Asked Questions
How do you change modes on the SPARK marker light?
You just press the center of the silicone housing to cycle through the outputs. The current version runs constant-on high, constant-on low, blink, and off in that order. Each press gives you a positive click so you can work it by feel when it's mounted out of sight.
Is the red SPARK light waterproof?
It's fully encapsulated in a flexible silicone body, which makes it water and damage resistant. That sealed design is what lets it hold up to rough handling and wet conditions. Keep in mind it's a sealed, disposable unit, so there's no opening it up to swap the battery.
How long does the battery last on the Unity SPARK?
The single-use cell is rated for a 200-plus hour runtime, though that varies with which mode you run. Constant high pulls the most power while blink and low output stretch things out considerably. Since it's a disposable design, the plan is to use it and replace it rather than recharge it.
Can you mount the SPARK to a helmet or metal surface?
Yes. The hook backing attaches directly to loop fields on most helmets, plate carriers, and chest rigs right out of the package. If you want to snap it onto metal or weave it into webbing, the separate SPARK Cage accessory adds internal magnets and a MOLLE-friendly setup.





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