[YATA0]

>It’s too bad they haven’t figured out how to make cheap LED strands that are more diffuse and in warm colors, as this is a significant energy burden for both homeowners and the country’s electrical grid.

They have figured it out. It's becoming exceedingly difficult to find incandescent Christmas lights these days. A quick check on two of my local big box store websites shows that non-LED Christmas lights are not even available for sale. LED lights use an order of magnitude less energy, so the current energy consumption is going to be quite different.