Cygolite Trion 1300 Bicycle Headlight 1300 lumen light output with superior triple optic & triple LED design using 2nd generation Cree XM-L LEDs Internal high-capacity Li-ion battery & compatible with external Cygolite 7.6v batteries for extended run time 8 lighting modes: Boost &gt; High &gt; Med &gt; Low &gt; Steady Pulse &gt; Day Flash &gt; Slow Flash &gt; Walking; battery Lasts up to 16 hours on a single charge Compact (260 g), water resistant and rechargeable with Illuminated light mode and battery level indicators Includes headlight, charger and Lock-tite handlebar mount