not good enough
I can buy a CFL for $1 or $2 on sale (I would not pay more because they have a high failure rate). A typical CFL that produces 60W actually consumes 13W of power. So I am going to pay quite a bit more for a lousy 4 W of difference ? I take my spent bulbs into a local hardware store as many take them in for recylcing. I could used Dimmable LEDs but I will wait for prices to come down. Sometimes people get into splittling hairs. Yah you can buy this great technology that consumes less but that technology is awfully expensive. If it is going to take years to get your money back it probably is not a good investment !