Best ideas for boat or kayak navigation lights, emergency lights, backup lights. These lights make your boat or kayak legal and safe at night, perfect for those who want to go fishing or go out on a boat or kayak at night.Ultra-bright design with 2 bright LEDs, the safety light provides over 0.6 miles of effective visibility to keep you safe while boating or kayaking at night.Easy to Install This LED safety light comes with a flexible silicone body and double hooks that allow you to attach it to the boat rail on your kayak rope.Three modes and long-life one-button switch design. With three modes of flashing, slow flashing and steady on, this warning light will bring you more fun.Power supply: two AG10 batteries (not included)Shipment quantity: 10 piecesPackage Contents: Only the above package content, other products are not included.size:(Reminder: The size is measured manually, please allow 1-2cm measurement error)Color: red, green(Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.)