Led Latern Rechargeable Portable Lamp Built-in lead-acid battery rechargeable and free maintenance, with high capacity to 4000mAH; long life span, can be used circularly 500 times above Using environmental and super brightness white color SMD LED, the life span can reach 100,000h; low power consumption, 50 pcs LED only consume 5W; it can work 4H,100 pcs LED consume 10w, it can work 2H. Turn on the rotatory switch, you can choose the 50 pcs lighting or 100 pcs lighting according to push the three gears to switch, also can be free to adjust led brightness with a rotatory switch by turning on/off or in clockwise/anticlockwise rotation. can meet all kinds of digital electronic products, The charge and discharge time depends on the different brands on the markets Attached with DC power input port, it can compatibly use solar panel charge or charger and the lamp has polarity protection function The lamp has an emergency function and is the best choice of an emergency light in all kinds of outdoor recreation, fieldwork, home, and market. When charging, rotate the switch to"OFF" and insert the one end of eight-character round AC power cord into the charging seat models, insert another end into the AC110 ~ 240V/50 ~ 60Hz power source socket, the relevant charging indicator light is on, it takes about 9 hours for the full charge If we adopt solar energy charging, the output parameters is voltage 6-12V, current 0.5A. It costs about 8h for full charge If we adopt power socket charging, the parameters is voltage 6V, current 0.5A. It costs about 8h for a full charge When using AC or DC port charging, open the rotatory switch, all the led light is off, but the lamp has an emergency function, it will automatically lighten when suddenly power lost Using USB charging output function, turning the knob switch to ON, USB power cord plugs products USB socket, the other end plug in to charge digital products, should be screw knob switch to OFF after use. To ensure the life of the battery, in the process of use, stop using and charging it promptly when the ray of the light is becoming dim obviously When using, do not shine eyes directly in case of affecting eyesight (Child should be guided under adults) When use AC charging, don't use DC charge at the same time(AC and DC can't be used at the same time) The longest charging time can not surpass 20 hours;(No exception for emergency function)