Input Voltage: 220 v Shape: Round Material ABS Plastic LED 19 pcs Dimension: 132*132*135 mm Duration time Approx 8-12 hours Lead acid rechargeable battery 4.0 V-0.6 MAH Charging time Approx 20 to 24 hours FEATURES Battery in side have over charge protection function, when battery is fully charged, it will stop automatically, that make the product more safety and longer life,can be used as backup light bulbs, short time charging but long time backup, energy saving led is highly luminous efficiency, consumes only 10% power of incandescent lamp, reaching the same illuminating effect, led safety the led belongs to cold lighting sources, environmental friendly, pay attention to explanation When operating the light is suddenly dim, that the circuit of over-discharging prevented to damage battery. Please recharged the battery at once, the lantern must be recharged at least 8 hours every three months, when not in use, please switch off the light, do not use or place the unit near water, the efficiency may decrease if lantern is used or charged when temperature is below 32 f 0°C or above 104 f 40°C