Unfortunately enough, the brightness of this sebson 2 3.8W - which are supposed entprechen the manufacturer individually 35W - not to create a pleasant lighting atmosphere in the desk surface. In addition to the insufficient (for my desk) brightness, light color is not really warm white - although yes 2700 Kelvin supposed to correspond to the light bulbs in about. But not everywhere where it says 2700K, 2700K is evident also in it! I believe the light of the smaller 3W LED bulbs of sebson - although 2900K draufsteht - for warm white! I have the impression that is handled quite arbitrarily with these values and the manufacturer and marketer of LED lights now like the magic number "2700K" write on the product ... just because it is so sold just better.
The luminous efficiency could well correspond to conventional 35W. I can not say exactly, have never owned a 35W light bulb. Know only 25W, 40W, 60W, etc. The light is slightly yellow-greenish.
The workmanship is good. Base and filament form a solid unit.
The heat is dissipated in the luminous body, which is made of glass ... is very hot!
The color rendering index (CRI) 75 is not optimal. Only from CRI 80 to the objects are displayed in the area of light colored fairly faithfully.
So I put the newly acquired LED bulbs in lamps with a shade. Here Kelvin and CRI do not play such a big role, here the shade makes the light color. For such use, they are thoroughly recommended.
