LED Luces solar 4V .55W 16 LED#

1) Solar panel: 0.55watt 

2) Li-ion battery: 3.7V 800mAH 

3) LED: 16pcs, 1watt 

4) Ray sensor: auto-light night 

5) Sound sensor: LED will run in power-saving mode in dark, when trigger the sound sensor, the LED turn on 100? and delay around 30 seconds automatically 

6) Protect function: over charging, over disch arging, over current, short circuit 

7) Advangtage for electronic: 

Constant voltage 4.2V charging type 

Input current limited 

Output current limited 

Backflow current proof for solar cell 

High effciency