Coast SL1 Red Safety LightPlace safety lightright where you need it.The COAST SL1 red safety lightis visible from up to a quarter mile away andofferstwoconvenientmounting options—a clip for backpacks, straps, and clothing, and an adhesive pad for helmets, hardhats, andother smooth surfaces.With a max run time of 48 hours, thisbutton-shapedsafetybeacon fits just about anywhere you need it to send a bright safety signal to those around you. The SL1 features three light modes—solid, flashing, and alternating flashing—for in-the-moment control.When it\'s time to power back up, the two CR2032 3v lithium batteries can be easily replaced.EMERGENCYSignal duress with flashing, bright-red light. If times get tough, COAST lights outfitted with Emergency mode help attract much-needed attention. *BATTERY TYPE2 x CR2032 *RUNTIME (ALT FLASHING RED)48 h *RUNTIME (FLASHING RED)18 h *RUNTIME (SOLID RED)7 h 45 min