Bulb Comparisons

Incandescent, brightness, LED wattage, CFL wattage

40W: 400-500 Lumens 6-7W 8-12W
60W: 650-850 Lumens 7-10W 13-18W
100W: 1450-1700 Lumens 14-20W 23-30W

Lower wattage numbers are what you normally see.

7 / 13 / 60
14 / 23 / 100