1. String lights usually use a lot of small led bulbs, ST45/S14 led bulb is the most for using on string lights. This ST45/S14 string light led bulb has 1 piece of 48mm length led filament vertically in the middle of the globe, can reach 1W 80lm at 2700K, with E26/E27/B22 medium size lamp base, clear glass. Of course we can make glass globe with gold color. It is dimmable.
2. String light usually has a waterproof lamp socket, the socket has a soft plastic skirt, the soft plastic skirt will tightly cover all the lamp base when the ST45/S14 string light led bulb is fixed into this socket, then the whole string light is waterproof.