The answer is the chemical energy of the fluids inside the wand. A glow stick is an independent, here and now light-source. It comprises of a translucent plastic tube containing detached substances that, when consolidated, make light through chemiluminescence, so it doesn't require an external vitality.
All animals and plants are made of cells. Animal and Plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.
