ACR HemiLight 3 - Automatic Survivor Locator LightHemiLight 3 Automatic Survivor Locator Light The ACR Auto HemiLight3 flashing survival light attaches to almost any style life jacket with a quick and easy installation. Smaller than other approved lights, the HemiLight 3 features rounded edges to maintain the integrity of inflatable life jackets. Attachment loop accommodates webbing up to 2" (5 cm) in width. The marine tough design ensures years of useful service. The HemiLight 3 offers a high