9W Twist (45W equivalent)
13-15W Twist (60W equivalent)
18-20W Twist (75W equivalent)
23-26W Twist (100W equivalent)
42W Twist (150-200W equivalent)
Use to replace a 45, 60, 75, and100W incandescent in a fixture that may hide the lamp. For enclosed fixtures, look for CFLs that are rated for"enclosed fixtures."

R20 Reflector (50-60W equivalent)
R30 Reflector (65-90W equivalent)
R40 Reflector (120W equivalent)
Use to replace 50-60,65-90, and 120W incandescent bulbs. R20's are the smallest and work in track lighting, R30's can be used in recessed cans and R40's work in flood lights.

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 and 60W globe in areas where lamp is visible. Bath bar or any downward facing socket.

A-Type
Use to replace a 40, 60, 75 and 100W A-lamp in areas where lamp is visible or any downward facing socket. This is the most aesthetically pleasing CFL when compared to an incandescent bulb.

15W Dimmable Twist
(60W equivalent)
23W Dimmable Twist
(100W equivalent)
Only use dimmable CFLs in dimming circuits that state they are rated "dimmable."