Kryptonite's Alley F-800 features 6 different modes and side illumination ports allowing you to be seen when riding across traffic lanes. Memory function turns the light on to the last mode it was turned off and power saving function automatically switches to a lower lumen output when your power is at 10% and lower. You'll never have to worry about buying batters as this headlight is fully USB rechargeable and the battery indicator will let you know by the colors how far you're off from having to charge it.  All these handy features and modes allows you to think about your ride and not about your light.

SPECIFICATIONS

• High steady = 800 lumens for 1.5 hrs runtime; run at 400 lumens for 3 hrs runtime
• Fully USB rechargeable - no batteries to buy or replace
• Power saving function- 10% power or less, lights will automatically switch to lowest lumen output
• Memory function turns light on at the last mode it was turned off
• Side illumination ports allow cyclist to be seen when riding across traffic lanes
• Memory Function-Light turns on at the last mode it was turned off
• Power saving function- 10% power or less, lights will automatically switch to lowest lumen output
• Built in battery indicator-Red illumination = lower than 25%, Yellow = 50% - 25%, Green = fully charged
• 6 modes including Daytime/Night time Pulse for greater visibility
• Modes include: HIGH STEADY, MEDIUM STEADY, LOW STEADY, DAYTIME PULSE, NIGHTTIME PULSE and ECONOMIC FLASH