
. Courtyard. The difference is that I don't hesitate to plug them in: 720 watts (48 from old incandescent bulbs) versus 64 watts is quite a significant difference. I tested them on my Kill-a-Watt tester and a string of 48 bulbs draws 64 watts, which is 1.33 watts per bulb (for 1 watt bulbs). Therefore, they use a little more energy than they should. Also, of the two packs of 24 bulbs I ordered, one bulb was defective because the metal end of the bulb was missing. This was an easy fix and the bulb worked after I added the missing metal tip. Would have given 5 stars if it wasn't for a blown lightbulb.