This water-activated C-Strobe from ACR is a feature-rich personal distress light that combines intense LED technology with increased operating life to provide you with the ultimate multifunction distress light. The C-Strobe is USCG/SOLAS approved and features an impact-resistant case, making it a reliable, multipurpose light whenever efficient distress lighting is needed. Specifications:• Size: 5.56" x 1.38" x 1.2" • Weight: 1.4oz (40g) without batteries• Operational Life: >120 hr at 30°C (>100 hr at -1°C)• Operation: Manual twist On/Off or Water-Activated• Waterproof: Tested for 24 hrs @ 3.3 ft • Lamp: 45 Lumen White LED• Light Type: Strobe/Steady On/SOS• Battery: 2 AA batteries (sold separately)• Certification USCG/SOLAS, CE, Transport Canada• Reverse Battery Protection: Yes• Accessories: PFD Clip, Lanyard, Velcro Strap• Limited Warranty: 1 year Enhances safety on all kinds of adventures USCG/SOLAS approved device | ACR C-Strobe Water-Activated LED PFD Emergency Strobe With Clip in White