LED solar lights built in 3.7V 1500mAh rechargeable lithium battery, bulbs charged by the solar power panel or Micro 5P DC 5V USB socket, after fully charged, it can be used to highlight: 5-7am Medium light: 11-13h;Low light: 7-10 p.m.How to charge with 1.2W solar panel: Place the solar panel outdoors under sunlight, and at the same time connect the bulb with the panel cord for 6-8 hours, the battery indicatorcharge is red, the full charge indicator is green. Function: 4 lighting modes with remote control 1.4 Lighting Mode: High 300LM/ Midium 150LM/ Low 75LM/ SOS;Press the AUTO button on the remote OR press the MODE button on the solar bulb 5 times, the light sensor mode only works when the solar panel plugs in a solar LED bulb. automatically turn off the solar lights and charge them during the day;and automatically turn on the lights at night. Solar bulb with remote timer: You can remotely set the timer 0.5/2/5/10 hours to automatically turn off the solar camping light.In the daytime, when there is sunshine, connect the solar panel with led bulb, the solar panel can convert solar energy into electric energy and store in the battery of solar led bulb.The charged bulb can be used as a mobile lighting lamp.