I personally feel the brightness hardly less than 25W halogen lamps.
The color is of course a bit colder than halogen, but pleasant but for me and much better than I know it from so many warm white energy-saving lamps or LEDs Ikea.
After about a month, unfortunately, began to flicker a lamp. A single LED on was blown after this short time.
For me it was a successful experiment to upgrade to LEDs.
