At last, a viable alternative to the power-hungry halogen spotlights. Previous tried LED or strohm saving lamps fell by smooth, as the light output was too low. The start-up time of some radiators up to full (But not sufficient light output) has been very troublesome. Not so with the SMD LED spotlights. 2900 Kelvin, the optical impression of light is more bluish than the warm white halogen lamps but not too cold. Have all ceiling spotlights exchanged in our home and in commercial beauty salon my wife against the new radiator and a comfortable well an illuminating light bekommen.Der power consumption is only 10% of a halogen lamp used bisherig with 50 watts and as bright !! Thrilled and when the lamps now even keep'm nearly as long as promised, I can only give the grade 1 ++ and recommend this product without limitation. For ceiling spotlights with mounting bracket for the lamps there may be in LED lights with cover glass to problems during installation, (glass bulges too much outwards, so that the bracket can no longer be properly secured and the lamp from the socket therefore falls Recommendation: Lamps without cover glass nehmen.Ist no problem at all!