The lamp get more steady in bad weathers of rain, wind and snow. It is mostly a closer solution for landscaping your environment by illuminating flag, tree, garden, yard, patio etc. Please Note: 1 the light for 1-2 sunny days before first use. 2 operating hours for this product would be shortened all the way through iciness or moist season since the photo voltaic lights are very weather sensitive. 3 confirm the change is under "1" or "2" popularity in order that the sunshine can be charged normally. four the floor is too hard, don't twist or hammer it with force. Try to soften the ground with water and then insert into the ground. Specifications: Waterproof level: IP65. Charging Time: about eight hours. Working Time: about 8-12 hours. Luminance: 200lum. Battery: Rechargable lithium battery 3 2200mAh. Solar panel: five / 1 Main Material: Plastic ABS Power Source: Solar-Powered Weight: 370g LED: 9 RBG Package includes: 1/2/3/4* Solar Lights