Bulb rendering light scene issue (noise)

Hi everyone,

i ’ m new here and i would like ask skillers advice, because i ’ m just rokie and not be able resolve it.
Look on this scene, so much noise after rendering. It was rendered with basic setup on 1024 samples (hope so), when i try
less samples, have less noise but quality is going down too. I just tried this guide

Then I tried Clamp indirect 1 and noise light noise disappeared, but scene looks bad.
Thank for advice or your tips:)


zarovka3.blend (1000 KB)