After I was very disappointed by Osram, Megaman I bought today 4 LEDs from Samsung 6.5 Watt 490 Lumen.
Here I can not fault reports, impeccable clean bright clear light without the ambient color is changed.
Please, you do not look at the wattage but the number of lumens that alone determines the brightness of the light.
In Kelvin light color is measured. Samsung 2700 Kelvin. The higher the Kelvin number, the whiter the light.
I noticed the Osram and Megaman specifically changed the environment colors. Everything seemed very pale. The Samsung LED does not alter the environment.
Incidentally 6.5 Watt 490 Lumen (Samsung LED) suffice for about 12-15 square meters.
Always consider what you want to illuminate when buying. It makes no sense 40sqm with a pear to want to illuminate 490 lumens!
Here my strong buy recommendation for Samsung LED! Impeccable quality!