🚨 Stay Seen, Stay Safe: The Ultimate Marine Signal Light for the Modern Explorer
The ACR Firefly Pro Waterbug is a military-grade, SOLAS & USCG certified LED strobe light designed for marine safety. Featuring a powerful 41 candela LED with 360° water-activated beam visible over 3 miles, it offers SOS, strobe, and steady-on modes. Powered by AA lithium batteries, it delivers up to 56 hours of strobe signaling. Compact and lightweight, it fits easily in lifevests, ensuring reliable emergency visibility and durability in critical situations.
| Color | Yellow |
| Material | Plastic |
| Light Source Type | Light Emitting Diode |
| Power Source | Battery Powered |
| Brand | ACR |
| Item Weight | 0.15 Pounds |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Voltage | 12 Volts |
| Specification Met | approved |
| Are Batteries Included | No |
| Product Dimensions | 9.5"L x 5.8"W x 1.3"H |
| Global Trade Identification Number | 00791659003411 |
| Manufacturer | ACR Electronics |
| UPC | 791659003411 |
| Item Package Dimensions L x W x H | 9.06 x 5.75 x 1.3 inches |
| Package Weight | 0.09 Kilograms |
| Item Dimensions LxWxH | 9.5 x 5.8 x 1.3 inches |
| Brand Name | ACR |
| Warranty Description | Warranty. |
| Model Name | 3971.3 |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | 3971.3 |
| Included Components | Great Product |
| Size | One Size |
L**A
Great product
Fairly easy to set up. Great video on YouTube to help
J**.
Works like they say it does
Looks good and works fine. The light output is good and bright but I don't see the cost in the construction. The plastic is thin and they don't even supply batteries with it.
J**M
Works perfectly
I bought one manual and one auto. I sprayed the auto with a plant sprayer and it did not turn on but as soon as I dunked it in water it came on. You must lubricate the seal as per manufacturer instruction with a silicone based lubricant. I also put a drop of silicone oil on the screw just in case. The screw itself is a bit delicate so Handle With Care when screwing on the base and it will last a long time. I see someone made a negative review but you cannot tell if this person followed the proper instructions which is possibly why it leaked if they did not put lubricant on the O-ring seal. In the automatic setting you can reset it by simply turning it on and off and maybe drying it the bit first. I think this is good for a locator signal light for short distances. In any case it's a great product and I'm a happy camper
C**O
Great Value. Add this in your pack!
Bought this to carry with me in my airplane. Peace of mind to know I have an additional tool to help me be found should the need arise.
S**H
I must have.
Works great, seems to be a little tricky getting the switch to stay on passive mode but overall it works and I have it on my vest all the time while I go kayaking of kayak fishing. Only 4 stars because it seems too expensive for what it is but, don't leave home without it. The information says it can be seen for 3 miles. Maybe in perfect weather and all though it is super bright! I doubt the 3 little AAA batteries could do that. Regardless, it seems built good, is very bright at night, and you MUST HAVE IT. I plan on getting the GPS version in a few years.
K**S
Needed a new strobe for my first line gear. One with a common battery.
Typical ACR quality and durability. Hard to accidentally activate. Takes AA batteries as opposed to my old military issue model.
B**C
Easy to use.
Bright and easy to use. A valuable survival tool.
A**.
Bright and easy
Very bright, exactly as advertised. I'll only buy this from now on
Trustpilot
1 week ago
5 days ago
