led dynamo flashlight ( CE,ROTH)

led dynamo flashlight ( CE,ROTH) HK503 specification: 1.material:ABS 2.super brigeht 3 straw hat leds,each up to 1200 MCD 3.hand pressing make electric or push the button onhead. 4.power supply:3 AG 10 button cells inside 5.size of unit:100*50*25mm operating: there are 2 ways to make the flashlight work: the first way is that you can push the lock button directly,the crank will brealeased,hand pressing the crank continually 30 seconds to 1 minute will give you approx one hour of light.if the light dims repeat cranking. second way is that you press the flashlight ON button directly,because there are 3 AG 10 button battery.if constantly push the button on ,the battery will use up after 30 minutes.