The light frequency response for plants vary, it depends on the additional pigments in the light-harvesting complex for each of the two photosystems (which themselves work with different wavelengths). This also varies with plant tissue and position. These pigments are colours you see in autumn leaves. They determine how light energy is captured and then transfer that energy step-by-step to an electron which is used to create a voltage gradient. So, they are – in fact – electric*. The gradient drives phosphorylation reactions which provide the cellular 'fuel' to fix atmospheric carbon dioxide into longer chain, soluble carbon compounds such as sugars. Fixing carbon doesn't require light, just energy. There are microbes that fix carbon non-photosynthetically.
Growing your cannabis under very bright lights results in poor quality – what tends to happen is that produce lots of leaves and photosynthetic material, but you really want them to generate cannabinoids, which they won't be doing if they're throwing all their energy into growth.
*so are we, the mitochondria that power our cells do the same thing, energizing electrons – this case by breaking down sugars to produce energy rather than using photons – to create an electrical gradient across a membrane). All life depends on reduction-oxidation to drive electrical gradients.