"Blades diameter: 12 inches Continuous working time: 8 hours Both DC and AC power supply Fan and light for emergency Specia

Blades diameter: 12 inches Continuous working time: 8 hoursBoth DC and AC power supplyFan and light for emergencySpecial design for saving powerPower: 40WIllumination: 13 LEDsMotor: 12VOver charging and over discharging protectionsMaintenance free lead-acid batteries: 12V.7.0AhDischarging duration:LEDs: > 60 hoursFan with high intensity: > 5.5 hoursFan with low intensity: > 8 hours