After instalation of 600w lutron eco-dim dimmer (single pole) with halogen dimmerable light bulbs ,there is a buzzing noise coming from the ligts.The volume of the noise changes with the position of the dimmer slider.

I had a similar problem when attempting to use 60W bulbs (multiple manufacturers and even heavy duty bulbs). I found that the buzzing was much less/not noticable with 40 W or 75W bulbs. Perhaps there is some resonant frequency associated with the 60W bulbs that makes them a particularly poor choice for this dimmer. I had a similar problem when attempting to use 60W bulbs (multiple manufacturers and even heavy duty bulbs). I found that the buzzing was much less/not noticable with 40 W or 75W bulbs. Perhaps there is some resonant frequency associated with the 60W bulbs that makes them a particularly poor choice for this dimmer.

That's interesting, I never thought of it being associated with a specific lamp wattage. I would argue that lower wattage lamps, mean less current, meaning less magnetic field, meaning less filaments bouncing around. But a resonant frequency... they may be some validity to that. That's interesting, I never thought of it being associated with a specific lamp wattage. I would argue that lower wattage lamps, mean less current, meaning less magnetic field, meaning less filaments bouncing around. But a resonant frequency... they may be some validity to that.