Cygolite TridenX 1300 1300 lumen output from 3 Cree 2nd generation XM-L LEDs- CrossFire technology for wider spread - Li-ion Xtra battery for longer run times OSP Technology lets you fine tune the brightness and flash speeds how you want them, directly to the light without external hardware or software 8 lighting modes: Boost &gt; High &gt; Med &gt; Low &gt; Steady Pulse &gt; Day Flash &gt; Slow Flash &gt; Walking; Xtra battery Lasts up to 32 hours on a single charge Durable, water resistant aluminum alloy casing with power/program buttons and light mode/battery level indicators on top of light for easy access Includes headlight, high capacity Li-ion Xtra battery, 3' extension cable, charger, Lock-tite handlebar mount and helmet mount