Compared to the running cost of fluorescent lights LED shop lights are the best and worth the initial outlay of converting your older light units. The energy savings these LED lights give you on your lighting electricity bills is vast and they will very quickly pay for themselves for that alone.
Also taking into consideration the fact that they are eco friendly, not only because they contain no mercury unlike the older fluorescent bulbs but because of the LED lights low power consumption. Put this with the ability to choose not only the brightness of LED bulbs that you require for your area but the color temperature of the light that is best for the work you are doing, anything from daylight temperature that you might see with garage light fixtures to the warm white light that is good for reception areas and the like, all with no flickering.