Have your next marketing campaign take over the world when you use these earthly light up ad lights. Keep clients, customers, and employees alerted to your business' success with our bright Strobe Lights. These are weather resistant and floats in water and has Xtra bright strobe lights with up to 1/2 mile visibility. It also has a guaranteed 100 hour battery life. These lights come with a heavy duty clip for belt, bike, hat and more. There are also many shapes for every promotional need. It can also be used with a pin.