Preposterous Concept for Solar Lighting

Here’s a concept that suggests powering a lamp with a cylindrical piece of solar PV energy.  If I were to take it into any fourth grade classroom in America and ask the kids for comments, I would hear three things:
1) Half of this points away from the sun!  That’s stupid!
2) This thing is tiny.  Solar panels need to be big enough to absorb lots of energy from the sun.
3) You need lights at night when the sun’s not shining.  That means batteries, and they’re expensive.
Now, second graders aren’t going to be able to do that, so this narrows the demographics if the concept’s promoter is looking for investors.