ENERGY STAR® Lighting

CFL Types & Applications | Bulb Equivalents

CFLs contain trace amounts of mercury. Protect the environment even more by disposing of them properly.

Bulb Converter

Remember the 4:1 rule – select a CFL with one-fourth the wattage of an incandescent.

 Incandescent bulb CFL bulb
40W = 9-11W
60W = 13-15W
75W = 18-20W
90W = 23W
100W = 23W
120W = 23W
* W = bulb wattage

CFL Types

 
  • 9W Twist (45W equivalent)
  • 13-15W Twist (60W equivalent)
  • 18-20W Twist (75W equivalent)
  • 23-26W Twist (100W equivalent)
Use to replace a 45, 60, 75, and 100W incandescent in a fixture that may hide the bulb. For enclosed fixtures, look for CFLs that are rated for "enclosed fixtures." 		 
  • A-Line
Use to replace a 40, 60, 75 and 100W A-lamp in areas where bulb is visible or any downward facing socket. This is the most aesthetically pleasing CFL when compared with an incandescent bulb.
 
  • R30 Reflector
Use to replace a 65-90W R lamp in a recessed can. 		 
  • 7W Decorative
For use in decorative fixture applications.
 
  • R40 Reflector
Use to replace a 65-120W R lamp in a recessed can and in the bathroom. 		 
  • 15W Dimmable Twist (60W equivalent)
  • 23W Dimmable Twist (100W equivalent)
Only use dimmable CFLs in dimming circuits that state they are rated "dimmable."
 
  • PAR38 Reflector
Use to replace a 90-120W outdoor floodlight. Be careful not to use in conjunction with a motion sensor or photo cell. 		 
  • Globes
Use to replace a 40-60W globe in areas where the bulb is visible, like a bath bar or any downward facing socket.