Quality led bulbs last 10 to 15 times longer than those old fluorescent styles on average.
How to replace fluorescent lights with led lights.
A 4 lamp 4 foot fixture can go from what you have now about 7200 lumens in led terms or the equivalent of replacing a fixture that has four brand new fluorescent tubes with four 1800 lumen led tubes to nearly twice as bright about 12 000 lumens with four 3000 lumen led tubes depending on the lumen rating of your led replacement tube.
If you are going to replace fluorescent light with led lighting you must take into consideration the color temperature.
Color temperature measurement is in kelvin k and most colors range from 2500 to 6500k a lower kelvin figure means the color is warm and tends to be closer to orange.
New led bulbs are also safer since broken fluorescent bulbs can expose you to mercury.
By contrast a high kelvin figure like 4000k means the color is cool and white in appearance.
You can just remove the fluorescents install the leds and you re done.
Most of these tubes are designed to simply fit into the fluorescent light fixtures you already have.
In comparison the cost of instant fit led tubes is 25 less than that of ballast bypass tubes hynek says.