1.bulit-in 6 super bright led,Life:more than 10,000 hours
2.Two different opertion models:3 LEDS and 6 LEDS
3.Useful double charge methods:solar power and crank dynamo
4.Solar charging time:around 6 hours,crank dynamo charge time:around 10 minutes
5.Full charge for lighting time:100 minutes
6.Battery:3.6V,120mAh rechargeable Ni-MH battery
7.size:82*229mm