1. cell: single-crystalline silicon (3v,100mA)2. Storage battery: Ni-MH (1*1200mAH) / Super Capacitor (1*120F)3. Light source: super luminosity LED;4. LED quantity: 4 pcs 5. Luminous mode: Constant Type (standard luminosity intensity) 6. Work time: more than 15 hours7. Work temperature: -25 to +75 d...