Its dual LED set-up puts out enough light at 1800 lumens to be more than capable navigating the toughest off-road terrain, while being nimble and versatile enough to tackle those long and arduous paved commutes. FEATURES a Lumen Output: 1800 a 7 Modes with Run Times: 0:45 - 20:00hrs a Charge Time: 3:00hrs a Weight: 258g a Battery: Li-Ion a Low Battery Indicator with Boost Mode Indicatora Boost Mode indicator, power button will light up red and bluea AC Adapter / Chargera Side Lighting Visibilitya Water / Dust Resistant IP64 Rated RUN TIMES*Low - 6:00h at 350 LumensMed - 3:00h at 700 LumensHigh - 1:30h at 1500 LumensBoost - 0:45h at 1800 LumensPulse Flash - 10:00h at 1500 LumensFast Flash - 16:30h at 1500 LumensWalk Mode - 20:00h at 100 Lumens