Solar table-lamp with three Lumen modes 10/50/200Lm. Note: turn on the switch under the lamp shade first, then control the lumen with the hanging switch. Place the solar lamp where the sun can reach the panel during the day to get the ultimate charge for the included battery, or you can bring the lamp inside and charge it indoors with a USB-C cable and adapter (not included), please note that the lamp does not light up when charging with cable.