I wasn’t sure the price was correct. Normally when I walk through Lowes, I check the price of LED bulbs. It seems they have always been between 11 and 15 dollars for the kind that would screw into a standard light fixture. This one said “$2.48″. That can’t be correct—but it was. At a price of under 3 dollars, this light bulb was a must buy. So I purchased it. Now for the testing. The box says it is like a 60 Watt incandescent bulb but only uses 9.5 Watts. Let’s check if this is true. Oh, and for fun I will look at some other bulbs: a compact fluorescent, and three incandescent bulbs (60 W, 100 W, 200 W). Yes, I found a 200 Watt bulb—I’m pretty sure you can’t buy these anymore. I just need to plug each bulb into the Watts Up Pro and then turn it on. Actually, I also used Logger Pro (from Vernier) to look at the power as a function of time. I wanted to see if there was a significant power change as the bulb warmed up—there wasn’t. Here are the powers for each bulb. There are actually two more bulbs in there. I had a 100 Watt incandescent bulb with clear glass (instead of the frosted glass) and then there were two compact fluorescent...