Doesn't seem very accurate to me, some of the electrical costs seems to be based on 24-7 usage so realistically it'll be half that at the most. Also the bulb replacement cost is awfully high on some, probably based on replacing bulbs every 6 months which I don't believe is required when using T5s. Once a year is usually perfectly fine, especially if you rotate the ones you replace, for example instead of replacing 4 per year change 2 every 6 months for better stability and less shock. Not sure about the LUX readings but that's not really important anyway and I wouldn't trust it anyway based on the other data on the chart.
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