Take control of safety lighting, and never go without-using the COAST SL1R rechargeable red safety light. Visible from up to a quarter mile away with a max run time of 41 hours, this button-shaped safety beacon features an embedded COAST ZITHION(TM) rechargeable battery so that you can power up on your terms (charging cable included). Designed to fit just about anywhere you need it to go, the SL1R comes with two mounting options-a clip for backpacks, straps, and clothing, and an adhesive pad for helmets, hardhats, and other smooth surfaces. The light shines in three modes-solid, flashing, and alternating flashing-for in-the-moment control.