The light out put has a Colour Rendering Index of 90 (CRI 90). Yhis means the spectrum of the light output is much closer to the spectrum of sunlight and lifts the colours of the objects it lights.
The bulb is 64mm diameter, and 145mm overall length.
The base is Edison Screw (E27)
The light out put is 640 Lumens and the light colour is 2700K which is the same as the old style incandescent bulbs.