WATER RESISTANT: Rating of IP 44, so the string lights could be use to your garden or other outdoor place when the weather is sunny with stand light rain or water spills. Each bulb is 5W, can give enough warm. Enjoy venue vintage atmosphere with just a few minutes of installation. These vintage Edison bulbs provide a much brighter and more useful light. The warm lighting of this classic edison light bulbs recaptures the glorious days of antiquity. Normally can be used for about 1000 hours indoors and outdoors use. They are neither bulbs, nor solar bulbs, but they are very bright.