ACR HL3 Hemilight Auto

The ACR HL3 Hemilight Auto is a compact, rugged survivor locator light designed for inflatable life jackets. It delivers reliable, automatic beaconing with 360-degree visibility when lives may depend on being seen.

• Activation: Water-activated automatic operation — the high-intensity flashing LED turns on upon contact with fresh or salt water and stays illuminated for 20+ hours under typical use; includes a manual off button to deactivate when needed.
• Beam angle: 360° visibility across all directions of the upper hemisphere for maximum visibility in emergencies.
• Dimensions: 2.44" x 1.19" x 1.13" (6.19 cm x 3.02 cm x 2.87 cm); low-profile design that preserves jacket integrity and reduces snag risk.
• Attachment: Quick retrofit installation with attachment loops that fit up to 5 cm (2 in) wide webbing; Life Jacket Clip included in the box; compatible with almost any life jacket style.
• Material: Rugged polycarbonate construction built to withstand years of demanding use.
• Waterproofing: Water-tight to 10 ft (3 m) and meets IMO standards for marine environments.
• Operational life: Exceeds the 8-hour requirement, typically delivering 20+ hours of operation per activation.
• Operating temperature: +30°F to +86°F (-1°C to 30°C).
• Stowage temperature: -22°F to +149°F (-30°C to +65°C).
• Approvals: USCG SOLAS, MED SOLAS.
• Battery: Non-hazardous lithium battery with a 5-year life (non-replaceable); meets DOT and IATA safe transport rules.

The Hemilight Auto provides dependable beaconing for boating, kayaking, or sailing, helping you stay visible when every second counts. Its automatic activation on contact with water eliminates the need for manual priming in an emergency, while 360-degree beam coverage ensures you can be seen from virtually any direction. The compact, jacket-friendly size, rugged build, and broad regulatory approvals offer peace of mind without adding complexity to your safety routine.