Some tryouts with mentalimages unbiased renderer IRay.

– Lightcubes:

My intention was to fully counterfeit the real world.
So i build up the led cubes with 2 LEDs in it.
Semitransparent material on it, with a low glossiness refraction.
Working on the bulb lamp was a bit more  difficult. The idea is only use the illumination of the glow wire.
Not easy to find out the right intensity in relation to the exposure control. With a few testrenderings i got this result.
If i find a way, to get the value for the intensity of the glow wire in relation to the power of the bulb lamp, i guess there is no testrendring needed, in case the materials and textures are testet and adjusted with iray.

I got the bulb lamp from:
http://artist-3d.com/free_3d_models/dnm/model_disp.php?uid=1315