Surefire M600DF Flash Light

Including original chargeable SF18650B battery.
It's "Dual Fuel," capable of operating on two CR123 batteries or the new, rechargeable lithium-ion SureFire
SF18650B. The CR123s produce 1200 lumens for an hour straight, which is impressive enough. But with the SF18650B the Scout produces an incredible 1500 lumens, for an hour and a half.