How long do CFLs last (1yr? for planted)

[mademperor]

I have (4) 22" bulbs on my 75g. I rather not replace them for $100 a year. Is this required.

 

[rrogan]

you can just let them go until the die for the most part. they aren't like normal fluorescent lights.

 

[Rex Grigg]

First off it you are paying $100 for four bulbs you need to shop around.

Second off the general consensus is to run them till they die.

 

[beviking]

Run 'em til they die.
Right in Rochester, NY...
http://www.ahsupply.com/bulbs.htm

 

[TwoTankAmin]

I use AH Supply- bear in mind they have to charge sales tax to any buyers in NY.

 

[boostnbuds]

Over time a compact flourescents output will lower. keep in mind the change in output is minimal. Unless u need every lumen you can get

It is only recommended to change them every year to maintain a maximum output. As long as you dont require the maximum output i would say switching every year is redundant and costly.

also 100 for a bulb is rediculous...