ACR C-Strobe H2O LED Life Jacket Strobe 3964
ACR C-Strobe H2O LED Life Jacket Strobe 3964 — Product description
The ACR C-Strobe H2O is a personal LED strobe that clips to your life jacket and turns itself on the moment it hits the water. You get a 45-lumen strobe rated for 120 hours of runtime, plus a manual push button when you want to signal on your own terms. It's USCG and SOLAS certified and submersible to a meter.
If you spend time offshore, on a kayak, or crewing a sailboat after dark, a strobe on your life jacket is one of the cheapest pieces of safety gear you can carry. The C-Strobe H2O clips onto your PFD and stays out of the way until you actually need it. Fall in, and it does the rest. This is the kind of gear you hope you never use, but you'll be glad it's there.
Here's what makes it handy. The C-Strobe H2O activates two ways. Drop into the water and the sensor turns the strobe on automatically, no fumbling for a switch while you're trying to keep your head up. Or hit the manual push button whenever you want to flag down a boat, mark your spot, or signal the helm. When the situation is over, you deactivate it by hand so you're not draining batteries back at the dock.
The light itself puts out 45 lumens through an LED strobe, bright enough to catch an eye across open water at night. Runtime is rated at 120 hours, so one set of batteries covers you through a long night and then some. It's built to take a dunking too, waterproof down to 1 meter for a full 24 hours. That's real submersion, not just splash resistance.
Certifications matter with survival gear, and this one checks the boxes. The C-Strobe H2O is USCG, SOLAS, CE, and Transport Canada certified, so it's accepted for both recreational and commercial use on either side of the border. It runs on 2 AA batteries, which are sold separately, so pick up a fresh set and keep spares in your ditch bag. At roughly 5.56 inches tall and just over an inch wide, it tucks onto a life jacket lash tab without adding bulk you'll notice.
Ships in bulk packaging. If you're outfitting a whole crew or a fleet of rental boats, that keeps the cost down while still giving every person aboard a personal light that turns itself on when it counts.
Key Features
- Dual activation: turns on automatically when immersed in water, or manually with a push button
- 45-lumen LED strobe, bright enough to be seen across open water at night
- 120-hour operational life on a single set of batteries
- Manual deactivation so you control battery drain once the emergency's over
- Waterproof to 1 meter for 24 hours of full submersion, not just splash resistance
- USCG, SOLAS, CE, and Transport Canada certified for recreational and commercial use
- Compact at 5.56 in tall by 1.38 in wide, clips to a life jacket lash tab
- Runs on 2 AA batteries (sold separately)
Why Buy from NVN Marine
- Authorized ACR Electronics reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | ACR C-Strobe H2O Water-Activated LED Life Jacket Strobe |
|---|---|
| Brand | ACR Electronics |
| Manufacturer Part Number | 3964 |
| UPC | 791659039649 |
| Activation | Automatic (water) and manual push button |
| Deactivation | Manual |
| Light Output | 45 Lumen |
| Light Type | LED Strobe |
| Operational Life | 120 hours |
| Width | 1.38 in |
| Depth | 1.2 in |
| Height | 5.56 in |
| Waterproof Rating | Submersible to 1 meter for 24 hours |
| Certifications | USCG / SOLAS / CE / Transport Canada |
| Battery | 2 AA (sold separately) |
| Packaging | Bulk |
Frequently asked questions
Does the C-Strobe H2O turn on by itself?
Yes. It has a water-activation sensor that switches the strobe on automatically the moment it's immersed. You can also turn it on manually with the push button, and you deactivate it by hand.
Are batteries included?
No. The C-Strobe H2O runs on 2 AA batteries that are sold separately. It ships in bulk packaging, so plan on adding a fresh set before you head out and keep spares aboard.
How long does it run?
It's rated for 120 hours of operational life on a set of batteries, enough to cover a long night on the water with margin to spare.
Is it waterproof?
Yes. It's rated waterproof to 1 meter for 24 hours, so it handles full submersion, not just spray off the bow.
Is it Coast Guard certified?
It's USCG, SOLAS, CE, and Transport Canada certified, which covers recreational and commercial use in both the US and Canada.
How bright is the strobe?
The LED puts out 45 lumens in a strobe pattern, bright enough to catch an eye across open water in the dark.
Where does it mount?
It's compact at about 5.56 inches tall and 1.38 inches wide, so it clips onto a life jacket lash tab or PFD without much bulk.
