Kohree 50 Leds Solar Powered String Lights, Multi-colored 1.designed for use outdoors in an open (unshaded) location./ Don not place near barbecues, heaters or any other direct sources of heat. 2.The unit should be located where sunlight can fall directly on the unit. Shadows from buildings, trees, walls/hedges and similar objects should be avoided if possible as these will reduce performance. 3.Try to avoid locations where light from other sources(e.g.streetlights, floodlights etc)may effect the PIR sensor. The units are designed only to illuminate in dark conditions, and may not come operate if light reflects on the panel. 4.The units can be left outside in rain, but should not to be exposed to water jets or immersed. For optimum life, the solar panel should be stored indoors during extreme weather conditions(prolonged snow and frost). 5.Locate each light by insert the spike in the ground, choose a location where is soft ground to enable, the spike to be pushed in easily.