I have in the bath 4 halogen lights (2 A '50 watts, 2 watts a`35, altogether. 170 Watt) against 4 LED spotlights of Lumen Star GU 10, 4.5 Watt, 330 lumen, 2700 Kelvin = extra warm white) exchanged. My impression: There is a total of not quite so bright as previously. The light color is more towards white. From "" extra-warmwhite "2700 Kelvin I had a little more promised. Lumen Star itself indicates that the 4.5 Watt LED spotlight corresponds to a 50 Watt halogen spotlight. This statement I think is a bit exaggerated. Overall, I am considering the current consumption 4 x 4.5 watts yet entirely satisfied. Presumably you soon get used to the new LED lighting.