Tips:Please confirm the switch is under "on" status so that the light could be charged normally and auto lights on at night.If the ground is too hard, do not twist or hammer it with force. Try to soften the ground with water and then insert into the ground.Description:The latest technology for beautiful, high-tech landscaping would be these In-ground Lights. During the daytime, they are retracted, and absorbing solar energy. At dusk, they literally pop up and light up, giving you lights along a pathway, driveway, deck or dock that aren't in your way during the day.Includes installation hardware, completely wireless. Powered by a lithium ion rechargeable battery that's solar powered - each light illuminates via 4 LEDs. Completely weather resistant. Each light works independently.Specifications:Waterproof level: IP64Charging time:4-5 hoursWorking time: about 6 - 9 hoursRechargeable Battery: 3.7V 2200mAhDimensions:29*9.5*34 cmPower Source: Solar-PoweredFeatures:2 modes - high light mode & dim light modeNo wiring required - simply install and enjoyGreat for landscapes, grass area, decks, docks, and moreSolar-Powered, Low Voltage, Stake or Hang, AutomaticAdjusted 270 degrees up or down (180 degree for the solar panel, 90 degree for the light head)Winter weather resistant- you can leave these out all year longPrior to first use, leave the light charge for two sunny days let the battery charge fullyPackage includes:2 * Solar In-ground Light2 * Spike2 * Manual6 * Screws