Safety light combo including both Whitelite Aero USB (Universal Serial Bus) 1W & Redlite Aero USB (Universal Serial Bus) 1W.
Features: Rubber strap allows tool-free mounting & removal. Low battery indicator 7.6x 3.4x 3.1cm 42g each Lamp: 3 Super Bright LED's Battery: 3.7V 640 m Ah Lithium Modes: High Beam, Low Beam, Blinking, Pulse Burn Time (approx): 2hr (High), 4hr (Low), 15hr (Blinking), 50hr (Pulse) Charge Time (approx): 2hrs