Noise level of Ballast?

Bitaddict · 20th January 2006, 05:36 AM

I've heard that MH ballast "hummm". Does this seem to be the case with the smaller wattage units we use? Is the noise level noticeable? I haven't heard anyone complain about this so Im guess no, but i just wanted a direct answer. Imput appreciated!

-Bit

zephyrus · 20th January 2006, 01:39 PM

I have a 150W metal halide ballast and it does humm, but it is hardly noticeable (when functioning properly). The noise from any fans that you have will drown it out completely. So, unless you don't have any fans and are watching silent films, then it really isn't anything to worry about.

dnsey · 20th January 2006, 02:48 PM

I recently changed a faulty electronic ballast for a 400W magnetic one, expecting to have to do something about noise and heat.
In the event, it's virtually silent (as Zephyrus says, inaudible above the fairly quiet fans) and runs almost stone cold. In fact, the lamp makes MUCH more noise when starting than the ballast does running.
I suspect that it all depends on the individual model - after all, noise isn't the first thing most lighting designers would worry about.

20th January 2006, 05:36 AM	#1
Bitaddict diyAudio Member Join Date: Dec 2005 Location: Michigan	Noise level of Ballast? I've heard that MH ballast "hummm". Does this seem to be the case with the smaller wattage units we use? Is the noise level noticeable? I haven't heard anyone complain about this so Im guess no, but i just wanted a direct answer. Imput appreciated! -Bit

20th January 2006, 02:48 PM	#3
dnsey diyAudio Member Join Date: Mar 2004 Location: Shropshire, England	I recently changed a faulty electronic ballast for a 400W magnetic one, expecting to have to do something about noise and heat. In the event, it's virtually silent (as Zephyrus says, inaudible above the fairly quiet fans) and runs almost stone cold. In fact, the lamp makes MUCH more noise when starting than the ballast does running. I suspect that it all depends on the individual model - after all, noise isn't the first thing most lighting designers would worry about. __________________ "I never did care for music much; It's the high fidelity!" Flanders & Swann

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20th January 2006, 01:39 PM	#2
zephyrus diyAudio Member Join Date: Oct 2005	I have a 150W metal halide ballast and it does humm, but it is hardly noticeable (when functioning properly). The noise from any fans that you have will drown it out completely. So, unless you don't have any fans and are watching silent films, then it really isn't anything to worry about.

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