It can be charged in three ways:
1; charged in the sun;
2: by hand-cranking;
3: by USB connecting to the computer.

Technical data:
Size: 17x6X7cm (Extension length:28CM)
Weight: 0.16KGS.
Materials: Thermoplastic ABS resin.
LED: 6LEDs, each of above 13,000MCD
Storage battery: 1.2V600mA NI-CD
Switch: stepless light-adjustable switch.

Used Dynamo Function:
Crank it clockwise or anticlockwise for 1 minute,
it can work for 15 minutes.
Charged by the USB connecting to the computer for 3 hours.
it can work for 5hours.

Used Solar Function:
It has 3 specifications:
NO1:Solar panel: 4V70mA(0.28w).
Charged in the sun for 10 hours,
it can work for 4-5 hours in strongest brightness.
NO2:Solar panel: 4V50mA(0.20w).
Charged in the sun for 14 hours,
it can work for 4-5 hours in strongest brightness.
NO3: Solar panel (non- crystal) 4V16mA
Charged in the sun for 8 hours,
it can work for 1.5 hours in strongest brightness.
Fully charge,can work 4-5 hours.

ertificates: CE, ROHS.

Packing:With color box
QTY:60PCS, N.W:9.5KGS, G.W:14.5KGS.
MEAS:44.5X37.5X37.5CM