I was so pleased with the performance of the CL-3 I purchased.
I figured I would purchase a couple CL-5's. I ordered both the cool white and the warm white, the warm white is my favorite, it produces a more natural light. I would compare it to a 60 watt bulb.
The Cool white is fine for general lighting, but it's a little spooky, I would not recommend cool whites for reading.

I had received notice from my electric company that they were increasing rates by 5%.
That would add an additional $5 dollars to my monthly bill. I'm not cool with that at all.
So I took the $60 dollars a year I would have spent on the higher electricity costs and decided to invest in bulbs. Switching from 15 watt CFL bulbs to Earthled 5 watt bulbs decreases my operating costs for lighting by 66 percent. When Earthled compared the savings of ownership, they never thought to mention rising electric prices into the equation. Anybody considering these bulbs, don't hesitate to try the warm white models. Buy them now!

I was really impressed at both the amount and quality of light this little guy put off into my office. It springs to life instantly (unlike CFLs) and (I tested it myself) simply sips power. It's at least 90% more efficient than incandescent light bulbs. Luckily for me, I got the bulb for free from EarthLED as a sample so I could better write about the bulb, but I'm looking to outfit all the non-dimmable lights in my house with EarthLED CL-5s.