The 1000L version of the Ledare LED puts out its 1,000 lumens from a power draw of 13 watts -- good for an efficiency score of 74 lumens per watt. That's a lot better than what you'll get from an incandescent or a CFL, but it's less efficient than most other major LED competitors.
Like its predecessor, the 1000L Ledare LED scores surprisingly high on the color rendering index. That means that its a lot better than the average LED at making the colors in your home look vivid and true.
How much better? Take a look for yourself. On the left is the Cree 75W Replacement LED, with a color rendering score of 80 out of 100. You can see that the yellow tones are a little overpowering, and that the reds and oranges are a bit dull.
On the right is an incandescent bulb, which scores just shy of a perfect 100. The whites look white, and the colors pop.
The Ikea LED sits in the middle, with a color rendering score of 90. To me, it looks a lot closer to the incandescent than it does to the LED.
The 1000L Ledare LED can be found in Ikea retail outlets worldwide. It sells for $11 in the US, which is good price compared with 75W replacement LEDs. The value dips a bit in Australia and the UK, where the bulb sells for AU$18 and £10, respectively.