The best replacement for light bulb is lamp.

The best alternatives to light bulb are rated as following:
★★★★★  lamp
★★★★  candle
★★★  light bulb
★★  fluorescent light bulb
★★  ballast
★★  tesla coil
★  incandescent
  telephone invented first
  toaster which uses more electricity
  telephone
  led bulb
  incandescent light bulb

Your alternative for light bulb is not listed? Suggest!
Speaking about light bulb, one probably shouldn't forget about cord.

Other search terms related to light bulb and their ratings are:
★★★★★ cord
★★ electricity
You have in mind a companion for light bulb and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of light bulb in all years. Click on graph for more.
light bulb
lamp
candle