I put a LED magnifying light on my reloading bench. When I had it on my FX-120i bounces +/-0.06 GN. Took me a few minutes to figure out the only thing new was the light. When I turned it off, the scale was solid at 0.00. I have a line conditioner in place, but it did not help. I guess I just have to have the light off when using the scale.