On an iPhone, how do I take a good picture of Christmas lights?

I want to take a good shot, but in the picture I see blots of light where the bulbs are, due to the light emitting from the lights.

Touch and hold the light on the screen and it will darken the picture, then click options and turn HDR on. Hopefully that works.

Have you tried taking the picture from a distance? That, or change the lighting in your room.

I believe you're referring to camera shake. Since we often take photos of Christmas lights in the dark, the camera has to use a long exposure in order to let enough light in. In that case, it's impossible even for an expert to hold their hand steady enough for a proper photo.

Try propping your phone up on a table. (Make sure it can't accidentally fall off!) If you're outside and don't have a table, try to make your hand as steady as possible by resting it against a tree, car, fence, or other stable object. You should also use the phone's timer to take the photo, because even pressing the button to take the picture can cause the phone to move too much. (I don't know if the phone comes with a timer, but if not - "there's an app for that".) If you can, hold your breath while you're taking the photo - but remember to breathe in between shots