Be Seen - Be Safe. The SL1R is a rechargeable safety light that is part of Coast's safety products and is specifically designed to enhance the safety of both professionals and households. The SL1R is a small, functional button-sized lamp with a red LED light that can be mounted anywhere it is needed. It has three light modes: steady, flashing, and alternating flash. The SL1R offers two convenient mounting options: a clip mount for backpacks, straps, clothing, or other items, and an adhesive pad for helmets, hard hats, and other smooth surfaces. This safety light features an integrated Coast Zithion rechargeable battery, providing a maximum runtime of up to 41 hours on a full charge. The lamp is easy to recharge with the included cable, ensuring you will never be without light. With the SL1R, you can expect to be seen from a distance of up to 400 meters. Coast has developed a range of innovative safety products designed to increase your visibility to everyone around you. They are built on decades of lighting expertise and are intended to help you stay safe, no matter where you work or live. Coast trusted tough.