Change your mood! Seriously. These silicone light bulb covers are easy to slip onto any CFL/LED lightbulb, and then can be just as easily switched as the mood strikes. The nice folks from Moodies sent me a rainbow of colors to sample, and I have to say, they’re pretty cool! My teenage son has taken them over in his room. Red seems to be the favorite so far, with blue coming in as a close second.