ACR Electronics 3964 C-Strobe H2O LED Life Jacket Emergency Signal Light Water-Activated USCG SOLAS

The ACR Electronics 3964 C-Strobe H2O is a water-activated LED personal distress strobe light built for mariners, boaters, and outdoor enthusiasts who demand reliable emergency signaling. USCG and SOLAS approved, this compact strobe delivers serious performance in a slim, pocket-sized package designed to attach directly to a life jacket, PFD, or backpack.

Key Features:

• 45-Lumen LED with a typical operating life of 120+ hours continuously in strobe mode
• 3 modes of operation: Strobe, Steady-On, and SOS
• Dual activation: Manual push-button On/Off activation or automatic water-activation when immersed (armed position)
• Waterproof — tested for 24 hours at 3.3 ft. (1 m) depth
• Impact-resistant case for rugged, multi-purpose use
• Flexible lashing loops on the sides allow mounting to life jacket straps, backpack webbing, and more
• Includes a clip designed to slide over an inflatable life jacket's oral inflation tube for secure storage
• Slim, lightweight design fits easily in a pocket or attaches discreetly to gear
• Ideal for life jackets, marine use, camping, biking, and automotive emergency kits
• Requires 1 AA battery (not included) — Bulk version (does not include Velcro strap or lanyard)

The ACR C-Strobe H2O is engineered for dependability when it matters most. Whether you're on the water or in the field, this USCG/SOLAS-approved personal distress light ensures you can signal for help effectively in low-light or nighttime emergencies. Note: This is the bulk (3964) version. The carded retail version with Velcro strap and lanyard is MPN 3964.1.