It’s actually more efficient to capture all wave lengths of solar store it in a battery and then only produce the wavelengths that the plants can absorb.

https://www.scientificamerican.com/article/plants-versus-pho...

In the same way that it's more efficient for me to drink high octane fuel rather than eat food.

Probably better to think of it as eating mushrooms rather than trying to chew on he bark of a tree.

Chewing on bark will work, if you have enough bark, but it’s significantly more effective to use a fungus as an intermediary.