I only need light in the winter.
/trolling
All kidding aside, some of the new LEDs are awesome. Technology finally caught up.
I have a hundred lumen per linear foot rope light, 40 foot of it on the ceiling ledge in the bedroom. No more mismatched socks. :-). It is as bright as daylight in there with a very similar color spectrum, and to top it off, just a buck a foot. It was way to dark before. 4000 lumin at the energy cost of less than a 100 watt bulb. (About a watt and a half a foot). None of the nasty cfl flicker either.
I remember when LEDs were new, red, and VERY dim.
It’s amazing that now they are headlight strength :-)
DC to visible light was a miracle... without a HOT filament anyways :-)