Do I need to install the bulb to string lights myself?
No, we have already installed the bulb for you, saving a lot of time for you, you just need to hang the strings easily to decorate your garden once you have received the goods.
If a single bulb doesn't work, will the other bulbs still light up?
Yes, even if the single bulb does not work, the other bulbs will still work, you just need to use the spare bulb to replace it.