Simply brilliant all the light youll needdouble click to high mode single click returns to the previous mode5 modes flashing hyper constant high middle lowruntime 100hr 200lm 12hr 1600lm 2hr 1600lm 5hr 500lm 15hr 200lm li ion rechargeable batteryrecharge time 8 14 hoursbattery compatible with volt 1200built in fast recharging circuit