This is still old K3 (soon update!)
Lamp has refraction blur 400% plastic surface (K3 is crazy with speed difficult surfaces!)
Is really doesn't matter for K3: 3 lights or 50 lights, surface with glass and blur or many surfaces of that, 10 or 40 bounce lights..always is fast
 
 

 G. is only one coder. There is one guy also which start coding with G.
  G. is only one coder. There is one guy also which start coding with G.