Model: BT-FD003
1) Cranking the hand crank to generate the power energy.
2) 30 seconds cranking can generate power for 15 minute illumination.
3) 3pcs super bright LEDs
4) Push button switch
5) Dimensions: dia 4cm * 14cm
6) One built-in mobile phone charger
7) Material: plastic
8) Unit weight: 145g