Product Description When received the LED solar powered light can't light up, please set the switch to “ON” mode, then put the solar lights outdoor decorative under sunlight for at least 8 hours, then take the garden solar lights to a completely dark room to see whether it will light up. Keep the solar panel at a 45 degree angle to let it directly face the sun to get enough solar recharged. Pls always keep the LED solar landscape lights switch in “ON” Mode, it will light up at dusk automatically every day. Make sure the solar garden stake lights without strong light source around at night, otherwise the solar light will not light up as it has built-in light sensor which can be affected.