There are now power - saving substitutions for traditional incandescent bulbs as well as LEDs, CFLs and halogens, a type of incandescent with a tungsten filament. (scientificamerican.com)
This book light uses traditional incandescent bulbs rather than LEDs, which have the benefit of producing a warmer light that can be easier on the eyes. (geekwrapped.com)
In fact, Manegold considers the light emitted from current LED bulbs to be the «closest representation» to the warmish light that's typically radiated from traditional incandescent bulbs. (scientificamerican.com)