Strobe

Water Bottle

Light Influence

Night and Low Photography

without tripod

with tripod

with tripod

without tripod

Night and Low Light Photography

You have two options to shoot in night or low Light;
one way is to use the artificial light which is your flash light, the other way is to use a long exposure.
Using a tripod helps to steady your camera and to avoid to get blurry pictures by moving the camera.
You should take night or low light picture in manual mode, because of the lack of light, auto mode might not work as well.