Ballasts.... What are they and what do they do? - Aquarium Advice

canyon15 · 01-20-2006, 10:26 PM

I think it has to do with lighting but really i have no sweet clue.

Macrosill · 01-20-2006, 11:05 PM

They are step-up transformers that power flourescant lights.

canyon15 · 01-21-2006, 02:13 AM

Are they a nessescity or something that is "nice to have"? I understand they power lights but so does a plug in the wall. Why would you need one?

ccCapt · 01-21-2006, 09:17 AM

Flourescent, [acronym:5d702ae37f="Very high output fluorescent"]vho[/acronym:5d702ae37f], power compact and metal halide all use a ballast. Without a ballast the light will not work.

Macrosill · 01-21-2006, 10:11 AM

These light bulbs are very different from incadescant bulbs.

Incadescant buld work off of 120v current. The electricity flows through the filament. The filament has a high resistance and there for heats up and glows, just like the element on an electric stove or in a toaster.

Flourescant bulbs, regardless if it is normal output, very high output, power compacts, T5's or even metal halides all need higher voltages to make them work. In simple terms these bulbs have no filament. Thery are filled with a gas. This gases electrons are "excited" by electrical current and glows. The electrical current be of a high enough voltage to accomplish this.

If you are using incandescant bulbs you do not need a ballast. If you are using flourescant bulbs of any type they will not work without a ballast.

Brian

canyon15 · 01-21-2006, 10:25 AM

Thanks for the quick responses. Is this something that you have to purchase separate if you want to run this type of lighting or does it come with it in a compact lighting system? [acronym:3528c694f7="Thanks in Advance"]TIA[/acronym:3528c694f7]

Macrosill · 01-21-2006, 10:26 AM

It will come with the fixture you purchase. The bulbs, however, may or may not be seperate.

Brian

01-20-2006, 10:26 PM	#1
canyon15 Aquarium Advice Freak Join Date: Jan 2006 Location: Halifax Canada Posts: 236	Ballasts.... What are they and what do they do? I think it has to do with lighting but really i have no sweet clue. __________________ 65 gal reef EQUIPMENT: 2 PC's 192W each , 20 gal sump/fuge LIVESTOCK: 4 false clowns, 2 firefish, cardinal, midas blennie, toadstool, zoos, shrooms, trumpet coral, torch, pagoda, frogspawn, poylps, red open brain, devils hand, hermits, snails, 3 cleaner shrimp, coral banded and a emerald crab.

01-20-2006, 11:05 PM	#2
Macrosill Aquarium Advice Freak Join Date: May 2005 Location: New York Posts: 282 Images: 4	They are step-up transformers that power flourescant lights. __________________ Good Luck, Brian

01-21-2006, 02:13 AM	#3
canyon15 Aquarium Advice Freak Join Date: Jan 2006 Location: Halifax Canada Posts: 236	Are they a nessescity or something that is "nice to have"? I understand they power lights but so does a plug in the wall. Why would you need one? __________________ 65 gal reef EQUIPMENT: 2 PC's 192W each , 20 gal sump/fuge LIVESTOCK: 4 false clowns, 2 firefish, cardinal, midas blennie, toadstool, zoos, shrooms, trumpet coral, torch, pagoda, frogspawn, poylps, red open brain, devils hand, hermits, snails, 3 cleaner shrimp, coral banded and a emerald crab.

01-21-2006, 09:17 AM	#4
ccCapt SW 10 & Over Community Mentor Join Date: Mar 2004 Location: Northeast PA Posts: 1,875 Images: 3	Flourescent, [acronym:5d702ae37f="Very high output fluorescent"]vho[/acronym:5d702ae37f], power compact and metal halide all use a ballast. Without a ballast the light will not work. __________________ 125g reef See My Tank Info Check out The build project /Larry

01-21-2006, 10:11 AM	#5
Macrosill Aquarium Advice Freak Join Date: May 2005 Location: New York Posts: 282 Images: 4	These light bulbs are very different from incadescant bulbs. Incadescant buld work off of 120v current. The electricity flows through the filament. The filament has a high resistance and there for heats up and glows, just like the element on an electric stove or in a toaster. Flourescant bulbs, regardless if it is normal output, very high output, power compacts, T5's or even metal halides all need higher voltages to make them work. In simple terms these bulbs have no filament. Thery are filled with a gas. This gases electrons are "excited" by electrical current and glows. The electrical current be of a high enough voltage to accomplish this. If you are using incandescant bulbs you do not need a ballast. If you are using flourescant bulbs of any type they will not work without a ballast. Brian __________________ Good Luck, Brian

01-21-2006, 10:25 AM	#6
canyon15 Aquarium Advice Freak Join Date: Jan 2006 Location: Halifax Canada Posts: 236	Thanks for the quick responses. Is this something that you have to purchase separate if you want to run this type of lighting or does it come with it in a compact lighting system? [acronym:3528c694f7="Thanks in Advance"]TIA[/acronym:3528c694f7] __________________ 65 gal reef EQUIPMENT: 2 PC's 192W each , 20 gal sump/fuge LIVESTOCK: 4 false clowns, 2 firefish, cardinal, midas blennie, toadstool, zoos, shrooms, trumpet coral, torch, pagoda, frogspawn, poylps, red open brain, devils hand, hermits, snails, 3 cleaner shrimp, coral banded and a emerald crab.

01-21-2006, 10:26 AM	#7
Macrosill Aquarium Advice Freak Join Date: May 2005 Location: New York Posts: 282 Images: 4	It will come with the fixture you purchase. The bulbs, however, may or may not be seperate. Brian __________________ Good Luck, Brian

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