[Blackbirdws6]

I tend to stick with the usual well-known brands however Feit has been around in recent years. Their products seem to be pretty affordable and performance is decent.

With any LED product for commercial or residential use, it's best to make sure they are qualified by Energy Star or Design Lights Consortium. While qualification doesn't guarantee the product will be perfect, it does set standards to a market with a very wide range of quality.

Regarding the 4' tubes, there are different types. The most popular at the moment are the plug-n-play ones which work off of an existing electronic instant start ballast. You remove the T8 lamps and install these tubes, that's it. These tubes are compatible with a fair amount of ballasts but you need to make sure before purchasing. The alternative is to purchase direct wire tubes which require bypass of the ballast. When this is done, you now have line voltage going to the tombstones so its important anyone working with these fixtures knows this.