When connecting to DC3-4. 2V output interface, it can light on the LED bulb by 3M cable.
HOW IT WORKS EFFICIENTLY?
1. please let the panel be perpendicular to the sunray by 90 degrees.
2. Best time for charging: 11:00 AM – 15:00PM in sunny day.
FULL CHARGING TIME IS 5-6HOURS.
3. This lamp also equips with 2000mAH 18650 lithium battery, can charge cellphones by the USB output interface.