These lights are not fully charged upon arrival. Please put them under the sun for 2-3 days to get fully charged before first use.
Panel must be in dark/ dim environment to turn on the lights. The light will turn on automatically when the environment brightness is less than 10 Lux. (if you want to turn on it at brighter environment, please simply cover the solar panel after power is charged.)
Please tear off the protective film from the solar panel before using.