Review on Efficient Ballast Dependent Replacement: Sunlite Equivalent for Optimal Performance by Michelle Reitz

We have ordered several versions from different manufacturers. (None worked.) Some don't specify if you need to remove the ballast from the old mount. Some don't mention the location of the insert tabs, which are sometimes left, center, or right. Be careful - there are so many things to consider. After three different manufacturers, we decided to replace our fixtures with lights that DO NOT NEED EXPENSIVE LAMPS OF THIS TYPE.