The ACR Hemilight flashing survival light attached to almost any style life jacket with a quick and easy installation. Smaller than other approved lights, the Hemilight features rounded edges to maintain the integrity of inflatable life jackets and meets USCG, MED and SOLAS requirements. The high-intensity flashing LED light automatically activates for 20 hours when it comes in contact with salt or fresh water, and can be deactivated simply by pushing the red button. Attachment loops accommodate up to 5cm wide webbing, and the marine-tough design ensures years of useful service.