I was managing the production of a music video shoot a few weeks ago. When I arrived at the piano shop Humless Reliable Power Systems were to film at for the day, I learned that the power was out, and wouldn’t be restored for at least another three hours. With no windows in the shop, we had no light. So I pulled out my Humless and we were able to setup for the shoot and be ready to go when the musician got there. We would have been completely stuck without the Humless.