The Environment Flashlight series details as follows:
1/ Environmental protection。Translating  kinetic energy to electricity energy , not only save energy sources , but also never needed batteries.
2/Super bright LED and indefectible , wildly apply in automobile , houseboat , bivouac , emergency etc.
3/Waterproof ,the flashlight even can float in water.
4/15-30 Seconds of  Shaking provides up to 5 minutes of continuous bright light.

Environment Flashlight has seven specifications:
(1)EF-602:Dimension(cm)：28×5.4×5.4
Packaging：

Box size(cm)：59.5×29.5×36；G.W.：23.5kg；N.W.：19kg；qty/box:60.
(2)EF-603：Dimension (cm)：24.3×5.4×5.4
Packaging：
Box size (cm)：59.5×26×36；G.W：21kg；N.W：20kg；qty/box:60.
(3)EF-604：Dimension(cm)：20×3.9×3.9
Packaging：
Box size(cm)：43.5×42×26.5；G.W：16kg；N.W：14kg；qty/box:120.
(4)EF-605：Dimension(cm)：17.1×3.94×3.94
Packaging：Box size(cm)：43.5×35.5×26.5；G.W：15.5kg；N.W：13.5kg；qty/box :120.
(5)EF-606：Dimension(cm)：14×3.5×3.5
Packaging：
Box size(cm)：41×30.5×33；G.W：13kg；N.W：11.5kg；qty/box :160.