UST See-Me Waterproof LED Light, USCG Approved, Strobe, 28 Lumens, Yellow LED strobe light Impact- resistant Personal locator Coast Guard approved LED personal locator light strobes at 60 times per minute Strobe is visible up to 2.7 miles Unbreakable lifetime LED bulb never needs replacing Provides 28 lumens of light and runs for 44 continuous hours on one set of 2AAA batteries Impact resistant and waterproof (IPX7) rating