... function:camping light ,FM radio ,alarm,charger Title: solar camping light with radio and charger for emergency Solar and Hand Cranking Dynamo ... LED working time when battery is full: 3h for 8 LED, 6h for 4 LED.7)FM radio working time when ... min, 8 LED can work for 8 min, radio can work for 1 min, alarm can work for 1 min.10) light ... , 6 LED OFF. solar camping light with radio and charger for emergency