Some parts of this story are contradictory. The story suggests that the algae emits photons, while the video narrator said the lamp is lighted - the algae simpl

Some parts of this story are contradictory. The story suggests that the algae emits photons, while the video narrator said the lamp is lighted - the algae simply grows using "a lighted aquarium" along with outside CO2, letting a fraction of the light through in the process. In the latter case, this is just a lamp with (micro)algae in it. The only catch would be the part where sunlight is required to charge up the internal lamp during the day.