ACRHemiLight3 HL3 Automatic Survivor Locator Light, Med, Solas, and USCGC Approved, Ensures Reliable, Automatic Distress Signaling for Swift Rescue in Emergencies.

Perfect safety light to pair with your boat life vests.

Well made, bright light even in the day. As many have said, the sensors trigger rather easily. Even when affixing the device onto the webbing and my fingers touched the probe, it lighted up. I'm in Singapore and humidity is rather high, so u can imagine that moisture of perspiration off my finger can trigger the strobe.Is it a bad thing? Well I would think that its not because then I'm sure when it does hit the water, it will trigger rather quickly. And yes it lights up instantly with not much delay

ACR has some excellent safety equipment, always well made, good quality materials, works as it is supposed to, and has an international reputation.

Yes, it was tested with positive results. Haven't used it in an emergency situation, however when tested it was very bright. I actually strapped it to my manual inflator tube which is located inside my auto inflatable life vest. This way when the life vest inflates after hitting the water, the light is exposed and activated when it touches the water.

Recently we took our boat from Miami to the Bahamas. We bought this device in case of emergency. Thankful we didn’t use it but it gave peace of mind while traveling!