1.Unique design, ABS high strength shell casing., lightweight size, convenient to carry. 2.Low noise, high power generating efficiency. With a 40 mAh Ni-H battery inside, it can illuminate 10 minutes after a minute cranking. 3.High brightness lighting: the 3 white LEDsí» max brightness can reach 45000 mcd and have a lifetime of 50000 hours. 4.Convenient to use, never need to change battery, cranking to recharge. 100pcs/ctn,8kg,19*28*35cm