I’m not sure about how I get the render less noise (Actually it still has a little noise on base and lamp shade’s under). I’m very new on 3D and animation. So I didn’t change blender original setting too much. First my image render pretty noisy too. I thought maybe it about light setting. So I adjust the lighting a little dim and more soft. There’re still noise so I adjust the color of backdrop’s floor and wall until it less noise. I set render at 250 samples, for me in this case render at higher rate than 250 not found much better results. Hope this information would help.
P.S. You can find useful information on this topic from darkokubra follow on this link. Sorry for my bad english.