As LED lighting technology improves and prices drop, it won't be long before all of our lightbulbs will be LED based. The Osram Sylvania Ultra 100-watt equivalent LED bulb uses just 20-watts of power and puts out 89 lm/W. The output color is noticeably warmer than most other LED bulbs at 2700 K of color. Long story short, this means you won't feel like you are sitting under a bright white fluorescent bulb. That is the good news, the only bad news is that you will have to wait for the Osram Sylvania 20 W Ultra to hit the streets later this year.