An important distinction between bulbs is the wattage, or the amount of power needed to power the bulb. Newer energy efficient bulbs may have a low wattage listed that don’t reflect the brightness output...check out the Lumens rating for the brightness of your bulb.
Another extremely important bulb factor is the kelvins, or temperature, of the bulb. Degrees of kelvin are measured from 1,000 to 10,000 and result in orange or more blue toned light. Avoid a “sterile” tone of lighting with Kelvins below 5000.