these are great lights and provide plenty of light overall but if you're looking for longevity these are not the best choice. Not bad for the money but if you have to replace these every few years it could get expensive.. If I had it to do all over again I would buy a 4-ft fluorescent fixture and change it over to LED bulbs that way when these bulbs start to fail I can simply replace the bulb. Not to mention the bulb Replacements are only 14 watts each which total 28 Watts which provides the same amount of light at less wattage..