The moon meteor x auto front light is a bright front light producing a focused 450 lumens moon use a standard light sphere for lumen measuring the light sphere measurement which counts the lumens vs time as a real lumen time curve plot the light features 1 x cree xp g2 led which is high quality led lighting the light features a better cooling system with improvements of 15 30 by managing heat this in turn makes your battery and light last longer as well as having a heat dissipating al