Upgraded Design : Part of the body using high quality aluminum alloy material with the anodizing process, which makes the product not only exquisite and classy but also more waterproof and durable than similar solar lights,withstands inclement weather and 100KG standing body. High Efficiency Light: Our upgraded solar lights with built-in 600 mAh large-capacity Ni-MH rechargeable battery, can light up for 8 Hrs after fully charged, maintain a continuous and well illumination even though on occasional rainy days and cloudy days. Waterproof - IP65 waterproof and high strength ABS make it 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 sleet. 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 dig a suitable hole for the spike. Best Customer Service: If you're unsatisfied with this item for any reason,please contact us we'll immediately help you solve the problem within 24 hours.