Just bought some Sylvania 27w Compact Fluorescent bulbs.

The note on the back reads:

"Do not use more than 25 lamps per 20 amp. branch circuit."

25 * 27 = 675 watts

675/120 = 5.6 amps.

Is the starting current high enough to require this limitation? Or is it just to accomodate substitutions by incedescent bulbs?