Two Charging Methods 1. Solar Panel Charging 2. USB Charging Solar Panel and USB Cable Charging LED solar lights built-in 3.7V rechargeable lithium batteries 1500mAh, bulbs charged by solar panel or Micro 5P DC 5V USB outlet, after fully charged, it can be used to highlight: 5-7am; Medium light: 11am-1pm; Low light: 7-10pm. How to charge with 1.2W solar panel: Place the solar panel outdoors under sunlight, and connect the bulb with the panel cable at the same time for 6-8 hours, the battery charging indicator is red, the full charging indicator is green. Function: 4 Lighting Modes with Remote Control 1. 4 Lighting Modes: High 300LM/Medium 150LM/Low 75LM/SOS; Press the AUTO button on the remote control OR press the MODE button on the solar light 5 times, the light sensor mode only works when the solar panel connects to a solar light. Automatically turn off the solar lights and charge them during the day; and automatically turn on the lights at night. 2. Solar light with remote timer: You can remotely control the timer 0.5/2/5/10 hours to auto