The recommended bulbs

These bulbs were 19 to 41 percent brighter than a standard 100W incandescent bulb. None failed during the 6454 switching cycles in our "long life" test. 

Philips Tornado Warm WhitePrice: $7.48

Ecobulb Warm White Price: $5.95

GE Entice Price: $4.96

Osram Minitwist Daylight Price: $6.56

Philips Tornado Dimmable Price: $19.99

GE Dimmable Warm White Price: $25.92