[Easy to be installed in-ground] - It just need only 15-20 seconds to install the lights on your desire location with spike, If the ground is too hard, do not twist or hammer it with force. Try to soften the ground with water and a suitable hole for the spike. [High Efficiency Light] - Our upgraded solar lights with built-in 400 mAh Ni- large-capacity rechargeable battery, can light up for 8 after fully , maintain a continuous and well illumination even though on occasional and cloudy days. [Waterproof] - IP68 waterproof and high strength ABS suitable for outdoor use.It can effectively isolate the water and mist.The solar ground lights can work under kinds of weather,like rain,snow,frost,or . [Advantage of Solar Lights] - Wireless,Waterproof and design.No need to replace wiring or batteries,use free solar .Adding perfect lighting for your courtyard,gardens,sidewalks,patio and corridors,etc. [Wide Application] - Suitable for decorating the Garden, Backyard, Sidewalk, Flower beds, Fences, etc. It's also the decor for Christmas, Halloween, Thanks Giving Day.