The SEE-ME 1.0 LED LIGHT is the perfect companion for your pack or Personal Floatation Device ensuring you can be located quickly in an emergency situation. The See-Me 1.0 LED Light provides 20 lumens of light for up to 17 continuous hours and the lifetime LED bulb never needs to be replaced. The See-Me 1.0 is waterproof with an IPX7 rating and it is U. S. Coast Guard-approved. Can be seen from 3.4 miles on a dark, clear night. Which exceeds the USCG standard of 1 nautical mile visibility. Lanyard cord and hook-and-loop strap included.