Replacement is best in terms of energy savings, but retrofits can be so cheap it may be hard to sell a client on a replacement unless you can convince them having all new, modern looking fixtures is worth something.
Power companies may have instant rebates on LED tubes, which can make these cheaper than fluorescent tubes. But LED tubes usually operate at a lower power than the fluorescent tubes, and usually put out less light also. If you have a space that is only lit so-so, doing a retrofit can make it look terrible.
Power companies may have instant rebates on LED tubes, which can make these cheaper than fluorescent tubes. But LED tubes usually operate at a lower power than the fluorescent tubes, and usually put out less light also. If you have a space that is only lit so-so, doing a retrofit can make it look terrible.