ACR Water Activated Personal Rescue Light For Life Vests


The L8-4 is a water-activated personal rescue light that is FAA approved for use on life vests. The lamp and lens combo of the L8-4 produce a powerful light that’s visible for over one mile. This rescue light has a water activated battery, and once it’s triggered, it’ll last for 8 hours.


  • FAA approved for use on life vests
  • Lamp and lens combo produces brilliant light visible for over one mile
  • Operates in fresh or salt water
  • Standard length lead wire 18 inches (46 cm); some custom lengths available (minimum quantities apply)
  • Water activated battery
  • Operation life exceeds 8 hours
Product Number 3730.0180 Bulk only
Size 3.1 x 1.8 x 1.6” (7.9 x 4.6 x 4.1 cm)
Weight 1.8 oz (51g)
Battery Size 3.7 x 1.0 x .42 in (9.4 x 2.6 x 1.0 cm)
Battery LIfe Extended useful life with plugs left in place
Battery Type Cuprous iodide/magnesium
Operational Life Exceeds 8 hours
Stowage air temperature range -30°C to +65°C
Operating temperature (in water) -1°C to +30°C
Material High impact styrene
Activation Pull tab, immerse in water to activate
Waterproof 10 ft ( 3 m)
Beam Angle Horizontal >2°, vertical >15°
Visibility Lamp and lens combo produces brilliant light visible for over 1 nautical mile (1.85 km)
Lamp Incandescent
Luminous Intensity >= 1 cd
Certification FAA TSO-C85, UK CAA
Limited Warranty 1 Year

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