... , polycrystalline film solar power 2V / 50mA, 2 Unisplendour UV-LED, HV: 400V/2S, continuous working time> 4-5hours. 2AA NI-MH ... , polycrystalline film solar power 4V / 50mA, 2 Unisplendour UV-LED, HV: 400V/2S, continuous working time> 8-10hours.certification :CE and ...