Have a test basis, these lamps ordered because of the price. And I am really pleasantly surprised! The LED's are slightly brighter than bulbs from Osram or Philips with identical power consumption. The light color is suitable well specified with 2900K. The comparison of the two lamps brand manufacturers were given with 2700K, and shone a shade warmer. In the living room I would install shade warmer (2700K), in all other rooms, these lamps are a good choice.