1,3led, no batteries or bulbs to replace ever
2, build in mini AC dynamo
3, everonment protection
4. Built-in rechargeable one 40mah lithium battery
5, packing: clamshell
6, print logo: Workable
7,Cell phone emergency charger, USB socket.

Out put voltage:5.5V

Current:300Mah

8,Cell phone charging adapter sets, Customer choose