Complete Light Set: Includes both a front (white) and rear (red) light. Brightness Levels: 25 lumens front light, 3.5 lumens rear light. Multiple Modes: Steady and flash. Water Resistant: IPX4 rating. Easy Assembly: Tools-free. Battery Powered: 4-CR2032 (3V) Batteries (included). Range & Run Time: Front light provides a 35’ range with a run time of 3 hours steady / 55 hours flash. Rear light provides a 30’ range with a run time of 6 hours steady / 38 hours flash