ACR Electronics - Firefly Pro Strobe Light
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Advanced Marine Safety with Automatic Water Activation
The ACR Firefly PRO Waterbug is a high-performance emergency strobe light designed for marine environments. With its automatic water activation feature, this SOLAS-approved device ensures immediate illumination upon submersion, providing a crucial lifeline in emergency situations. Equipped with four operational modes, users can select between armed mode for automatic activation, an ultra-bright strobe for visibility, an SOS signal for distress alerts, and a steady-on mode for close-range recovery operations.
Designed for maximum reliability, the Firefly PRO Waterbug delivers an impressive 360-degree beam of cool white LED light, enhancing visibility over 3.5 miles. Its advanced microprocessor and energy-efficient electronics enable continuous operation for over 56 hours—far exceeding industry regulations and doubling the performance of competing models. The LED’s cool white hue eliminates yellow tinting, further improving long-range visibility in challenging conditions.
Durable and Efficient Technical Specifications
- Operation: Manual ON/OFF switch with automatic water activation
- Waterproof Rating: Factory tested to depths of up to 33 feet (10 meters)
- Light Source: Cool white LED
- Strobe Intensity: Minimum 26.8 candela
- Visibility Range: Over 3.2 miles
- Flash Rate: 60 pulses per minute (±)
- Battery Life: Minimum 56 hours of continuous operation
- Certifications: Pending approval for SOLAS, USCG, IMO LSA, and CE
Compact and Lightweight Design
- Dimensions: 4.4 x 2.2 x 1.2 inches (11.7 x 5.7 x 2.8 cm)
- Weight: 2.39 oz (68 g) without batteries
Key Features at a Glance
- Automatic water activation for immediate distress signaling
- Ultra-bright cool white LED for superior visibility over 3.5 miles
- Four operational modes, including strobe, SOS, and steady-on for recovery
- Energy-efficient electronics providing over 56 hours of continuous operation
- Waterproof construction, tested to depths of 33 feet
- Compact and lightweight design for easy portability
Available Variations
- 3970.4 - Strobe Type PRO SOLAS: Designed for professional-grade marine safety applications
- 3971.4 - Strobe Type PRO Waterbug: Equipped with water activation for automatic emergency signaling
Built for the demands of marine professionals and recreational boaters alike, the ACR Firefly PRO Waterbug is a reliable safety companion designed to enhance survival and rescue efforts in critical situations.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.
Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.
